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10 vulnerabilities found for ant by apache
CVE-2026-78254 (GCVE-0-2026-78254)
Vulnerability from nvd – Published: 2026-09-07 07:41 – Updated: 2026-09-08 15:45
VLAI
EPSS
VEX
Title
Apache Ant: Path traversal in ftp and scp tasks allows arbitrary file write
Summary
The ftp and scp tasks of Apache Ant can download files from a remote server. A malicious server can provide relative paths that allow it to write outside of the dedicated target directory for the download, making it possible to overwrite files of the attacker's choice using the permissions of the user running Ant in versions prior to Ant 1.10.18.
In order to exploit this vulnerability, the server would either have to be malicious or be subject to a machine-in-the-middle attack. Additionally in the case of scp or the ftp task using ftps the server must pass the server identity checks performed by the tasks.
For ftp tasks not using ftps a malicious server could act as a machine-in-the-middle to provide malicious files.
Starting with Ant 1.10.18 both tasks will prevent writing outside of the destination directory by default. An option is available to disable this behavior in the unlikely case that the old behavior is required by existing build files.
Mitigations:
Users of scp and ftp (when using ftps) in any version of Ant should not bypass server identity checks. Users of ftp not using ftps should switch to ftps where possible.
All users are recommended to upgrade to Apache Ant 1.10.18, which fixes this issue.
Severity
7.4 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-08 15:44 UTC
CWE
- CWE-23 - Relative path traversal
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache Ant |
Affected:
1.2 , < 1.10.18
(custom)
|
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CVE-2021-36374 (GCVE-0-2021-36374)
Vulnerability from nvd – Published: 2021-07-14 06:20 – Updated: 2024-08-04 00:54
VLAI
EPSS
VEX
Title
Apache Ant ZIP, and ZIP based, archive denial of service vulerability
Summary
When reading a specially crafted ZIP archive, or a derived formats, an Apache Ant build can be made to allocate large amounts of memory that leads to an out of memory error, even for small inputs. This can be used to disrupt builds using Apache Ant. Commonly used derived formats from ZIP archives are for instance JAR files and many office files. Apache Ant prior to 1.9.16 and 1.10.11 were affected.
Severity
No CVSS data available.
CWE
- CWE-130 - Improper Handling of Length Parameter Inconsistency
Assigner
References
11 references
| URL | Tags |
|---|---|
| https://ant.apache.org/security.html | x_refsource_MISC |
| https://lists.apache.org/thread.html/rdd5412a5b9a… | x_refsource_MISC |
| https://lists.apache.org/thread.html/r27919fd4db0… | mailing-listx_refsource_MLIST |
| https://lists.apache.org/thread.html/r544c9e84874… | mailing-listx_refsource_MLIST |
| https://lists.apache.org/thread.html/rad36f470647… | mailing-listx_refsource_MLIST |
| https://lists.apache.org/thread.html/rf4bb79751a0… | mailing-listx_refsource_MLIST |
| https://www.oracle.com/security-alerts/cpuoct2021.html | x_refsource_MISC |
| https://security.netapp.com/advisory/ntap-2021081… | x_refsource_CONFIRM |
| https://www.oracle.com/security-alerts/cpujan2022.html | x_refsource_MISC |
| https://www.oracle.com/security-alerts/cpuapr2022.html | x_refsource_MISC |
| https://www.oracle.com/security-alerts/cpujul2022.html | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache Ant |
Affected:
1.4 , < Apache Ant*
(custom)
Affected: Apache Ant 1.9.x , ≤ 1.9.15 (custom) Affected: Apache Ant 1.10.x , ≤ 1.10.10 (custom) |
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CVE-2021-36373 (GCVE-0-2021-36373)
Vulnerability from nvd – Published: 2021-07-14 06:20 – Updated: 2024-08-04 00:54
VLAI
EPSS
VEX
Title
Apache Ant TAR archive denial of service vulnerability
Summary
When reading a specially crafted TAR archive an Apache Ant build can be made to allocate large amounts of memory that finally leads to an out of memory error, even for small inputs. This can be used to disrupt builds using Apache Ant. Apache Ant prior to 1.9.16 and 1.10.11 were affected.
Severity
No CVSS data available.
CWE
- CWE-130 - Improper Handling of Length Parameter Inconsistency
Assigner
References
11 references
| URL | Tags |
|---|---|
| https://ant.apache.org/security.html | x_refsource_MISC |
| https://lists.apache.org/thread.html/r54afdab05e0… | x_refsource_MISC |
| https://lists.apache.org/thread.html/r27919fd4db0… | mailing-listx_refsource_MLIST |
| https://lists.apache.org/thread.html/r544c9e84874… | mailing-listx_refsource_MLIST |
| https://lists.apache.org/thread.html/rad36f470647… | mailing-listx_refsource_MLIST |
| https://lists.apache.org/thread.html/rf4bb79751a0… | mailing-listx_refsource_MLIST |
| https://www.oracle.com/security-alerts/cpuoct2021.html | x_refsource_MISC |
| https://security.netapp.com/advisory/ntap-2021081… | x_refsource_CONFIRM |
| https://www.oracle.com/security-alerts/cpujan2022.html | x_refsource_MISC |
| https://www.oracle.com/security-alerts/cpuapr2022.html | x_refsource_MISC |
| https://www.oracle.com/security-alerts/cpujul2022.html | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache Ant |
Affected:
Apache Ant 1.9.x , ≤ 1.9.15
(custom)
Affected: Apache Ant 1.10.x , ≤ 1.10.10 (custom) Unaffected: Apache Ant , < 1.9.0 (custom) |
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CVE-2020-11979 (GCVE-0-2020-11979)
Vulnerability from nvd – Published: 2020-10-01 19:24 – Updated: 2026-10-08 21:24
VLAI
EPSS
VEX
Summary
As mitigation for CVE-2020-1945 Apache Ant 1.10.8 changed the permissions of temporary files it created so that only the current user was allowed to access them. Unfortunately the fixcrlf task deleted the temporary file and created a new one without said protection, effectively nullifying the effort. This would still allow an attacker to inject modified source files into the build process.
Severity
No CVSS data available.
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-08 21:13 UTC
CWE
- insecure temporary file vulnerability
- CWE-379 - Creation of Temporary File in Directory with Incorrect Permissions
Assigner
References
19 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | Apache Ant |
Affected:
Apache Ant 1.10.8
|
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CVE-2020-1945 (GCVE-0-2020-1945)
Vulnerability from nvd – Published: 2020-05-14 15:57 – Updated: 2024-08-04 06:54
VLAI
EPSS
VEX
Summary
Apache Ant 1.1 to 1.9.14 and 1.10.0 to 1.10.7 uses the default temporary directory identified by the Java system property java.io.tmpdir for several tasks and may thus leak sensitive information. The fixcrlf and replaceregexp tasks also copy files from the temporary directory back into the build tree allowing an attacker to inject modified source files into the build process.
Severity
No CVSS data available.
CWE
- insecure temporary file vulnerability
Assigner
References
52 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | Apache Ant |
Affected:
Apache Ant 1.1 to 1.9.14 and 1.10.0 to 1.10.7
|
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{
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{
"name": "[creadur-dev] 20210419 [jira] [Commented] (RAT-274) Update to at least Ant 1.10.8/1.9.15 in order to fix CVE-2020-11979 / raise compiler level to JDK8",
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{
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"tags": [
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],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "Apache Ant",
"vendor": "n/a",
"versions": [
{
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"value": "Apache Ant 1.1 to 1.9.14 and 1.10.0 to 1.10.7 uses the default temporary directory identified by the Java system property java.io.tmpdir for several tasks and may thus leak sensitive information. The fixcrlf and replaceregexp tasks also copy files from the temporary directory back into the build tree allowing an attacker to inject modified source files into the build process."
}
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{
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{
"description": "insecure temporary file vulnerability",
"lang": "en",
"type": "text"
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],
"providerMetadata": {
"dateUpdated": "2022-02-07T14:40:33.000Z",
"orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
"shortName": "apache"
},
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{
"name": "[creadur-dev] 20200518 [jira] [Created] (RAT-269) Fix CVE-2020-1945: Apache Ant insecure temporary file vulnerability by updating to latest ANT",
"tags": [
"mailing-list",
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{
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{
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{
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{
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CVE-2026-78254 (GCVE-0-2026-78254)
Vulnerability from cvelistv5 – Published: 2026-09-07 07:41 – Updated: 2026-09-08 15:45
VLAI
EPSS
VEX
Title
Apache Ant: Path traversal in ftp and scp tasks allows arbitrary file write
Summary
The ftp and scp tasks of Apache Ant can download files from a remote server. A malicious server can provide relative paths that allow it to write outside of the dedicated target directory for the download, making it possible to overwrite files of the attacker's choice using the permissions of the user running Ant in versions prior to Ant 1.10.18.
In order to exploit this vulnerability, the server would either have to be malicious or be subject to a machine-in-the-middle attack. Additionally in the case of scp or the ftp task using ftps the server must pass the server identity checks performed by the tasks.
For ftp tasks not using ftps a malicious server could act as a machine-in-the-middle to provide malicious files.
Starting with Ant 1.10.18 both tasks will prevent writing outside of the destination directory by default. An option is available to disable this behavior in the unlikely case that the old behavior is required by existing build files.
Mitigations:
Users of scp and ftp (when using ftps) in any version of Ant should not bypass server identity checks. Users of ftp not using ftps should switch to ftps where possible.
All users are recommended to upgrade to Apache Ant 1.10.18, which fixes this issue.
Severity
7.4 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-08 15:44 UTC
CWE
- CWE-23 - Relative path traversal
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache Ant |
Affected:
1.2 , < 1.10.18
(custom)
|
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CVE-2021-36374 (GCVE-0-2021-36374)
Vulnerability from cvelistv5 – Published: 2021-07-14 06:20 – Updated: 2024-08-04 00:54
VLAI
EPSS
VEX
Title
Apache Ant ZIP, and ZIP based, archive denial of service vulerability
Summary
When reading a specially crafted ZIP archive, or a derived formats, an Apache Ant build can be made to allocate large amounts of memory that leads to an out of memory error, even for small inputs. This can be used to disrupt builds using Apache Ant. Commonly used derived formats from ZIP archives are for instance JAR files and many office files. Apache Ant prior to 1.9.16 and 1.10.11 were affected.
Severity
No CVSS data available.
CWE
- CWE-130 - Improper Handling of Length Parameter Inconsistency
Assigner
References
11 references
| URL | Tags |
|---|---|
| https://ant.apache.org/security.html | x_refsource_MISC |
| https://lists.apache.org/thread.html/rdd5412a5b9a… | x_refsource_MISC |
| https://lists.apache.org/thread.html/r27919fd4db0… | mailing-listx_refsource_MLIST |
| https://lists.apache.org/thread.html/r544c9e84874… | mailing-listx_refsource_MLIST |
| https://lists.apache.org/thread.html/rad36f470647… | mailing-listx_refsource_MLIST |
| https://lists.apache.org/thread.html/rf4bb79751a0… | mailing-listx_refsource_MLIST |
| https://www.oracle.com/security-alerts/cpuoct2021.html | x_refsource_MISC |
| https://security.netapp.com/advisory/ntap-2021081… | x_refsource_CONFIRM |
| https://www.oracle.com/security-alerts/cpujan2022.html | x_refsource_MISC |
| https://www.oracle.com/security-alerts/cpuapr2022.html | x_refsource_MISC |
| https://www.oracle.com/security-alerts/cpujul2022.html | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache Ant |
Affected:
1.4 , < Apache Ant*
(custom)
Affected: Apache Ant 1.9.x , ≤ 1.9.15 (custom) Affected: Apache Ant 1.10.x , ≤ 1.10.10 (custom) |
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CVE-2021-36373 (GCVE-0-2021-36373)
Vulnerability from cvelistv5 – Published: 2021-07-14 06:20 – Updated: 2024-08-04 00:54
VLAI
EPSS
VEX
Title
Apache Ant TAR archive denial of service vulnerability
Summary
When reading a specially crafted TAR archive an Apache Ant build can be made to allocate large amounts of memory that finally leads to an out of memory error, even for small inputs. This can be used to disrupt builds using Apache Ant. Apache Ant prior to 1.9.16 and 1.10.11 were affected.
Severity
No CVSS data available.
CWE
- CWE-130 - Improper Handling of Length Parameter Inconsistency
Assigner
References
11 references
| URL | Tags |
|---|---|
| https://ant.apache.org/security.html | x_refsource_MISC |
| https://lists.apache.org/thread.html/r54afdab05e0… | x_refsource_MISC |
| https://lists.apache.org/thread.html/r27919fd4db0… | mailing-listx_refsource_MLIST |
| https://lists.apache.org/thread.html/r544c9e84874… | mailing-listx_refsource_MLIST |
| https://lists.apache.org/thread.html/rad36f470647… | mailing-listx_refsource_MLIST |
| https://lists.apache.org/thread.html/rf4bb79751a0… | mailing-listx_refsource_MLIST |
| https://www.oracle.com/security-alerts/cpuoct2021.html | x_refsource_MISC |
| https://security.netapp.com/advisory/ntap-2021081… | x_refsource_CONFIRM |
| https://www.oracle.com/security-alerts/cpujan2022.html | x_refsource_MISC |
| https://www.oracle.com/security-alerts/cpuapr2022.html | x_refsource_MISC |
| https://www.oracle.com/security-alerts/cpujul2022.html | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache Ant |
Affected:
Apache Ant 1.9.x , ≤ 1.9.15
(custom)
Affected: Apache Ant 1.10.x , ≤ 1.10.10 (custom) Unaffected: Apache Ant , < 1.9.0 (custom) |
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CVE-2020-11979 (GCVE-0-2020-11979)
Vulnerability from cvelistv5 – Published: 2020-10-01 19:24 – Updated: 2026-10-08 21:24
VLAI
EPSS
VEX
Summary
As mitigation for CVE-2020-1945 Apache Ant 1.10.8 changed the permissions of temporary files it created so that only the current user was allowed to access them. Unfortunately the fixcrlf task deleted the temporary file and created a new one without said protection, effectively nullifying the effort. This would still allow an attacker to inject modified source files into the build process.
Severity
No CVSS data available.
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-08 21:13 UTC
CWE
- insecure temporary file vulnerability
- CWE-379 - Creation of Temporary File in Directory with Incorrect Permissions
Assigner
References
19 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | Apache Ant |
Affected:
Apache Ant 1.10.8
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"datePublished": "2020-10-01T19:24:57.000Z",
"dateReserved": "2020-04-21T00:00:00.000Z",
"dateUpdated": "2026-10-08T21:24:17.454Z",
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CVE-2020-1945 (GCVE-0-2020-1945)
Vulnerability from cvelistv5 – Published: 2020-05-14 15:57 – Updated: 2024-08-04 06:54
VLAI
EPSS
VEX
Summary
Apache Ant 1.1 to 1.9.14 and 1.10.0 to 1.10.7 uses the default temporary directory identified by the Java system property java.io.tmpdir for several tasks and may thus leak sensitive information. The fixcrlf and replaceregexp tasks also copy files from the temporary directory back into the build tree allowing an attacker to inject modified source files into the build process.
Severity
No CVSS data available.
CWE
- insecure temporary file vulnerability
Assigner
References
52 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | Apache Ant |
Affected:
Apache Ant 1.1 to 1.9.14 and 1.10.0 to 1.10.7
|
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"title": "CVE Program Container"
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{
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{
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{
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{
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{
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{
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