CVE-2026-34981 (GCVE-0-2026-34981)
Vulnerability from cvelistv5 – Published: 2026-04-06 16:19 – Updated: 2026-04-06 18:45
VLAI
EPSS
VEX
Title
whisperX REST API: SSRF in download_from_url() — URL validation happens after HTTP request, extension bypass via .mp3
Summary
The whisperX API is a tool for enhancing and analyzing audio content. From 0.3.1 to 0.5.0, FileService.download_from_url() in app/services/file_service.py calls requests.get(url) with zero URL validation. The file extension check occurs AFTER the HTTP request is already made, and can be bypassed by appending .mp3 to any internal URL. The /speech-to-text-url endpoint is unauthenticated. This vulnerability is fixed in 0.6.0.
Severity
5.8 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-06 18:45 UTC
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/pavelzbornik/whisperX-FastAPI/… | x_refsource_CONFIRM |
| https://github.com/pavelzbornik/whisperX-FastAPI/… | x_refsource_MISC |
| https://github.com/pavelzbornik/whisperX-FastAPI/… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| pavelzbornik | whisperX-FastAPI |
Affected:
>= 0.3.1, < 0.6.0
|
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-34981",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-04-06T18:45:23.314461Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-04-06T18:45:41.844Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "whisperX-FastAPI",
"vendor": "pavelzbornik",
"versions": [
{
"status": "affected",
"version": "\u003e= 0.3.1, \u003c 0.6.0"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "The whisperX API is a tool for enhancing and analyzing audio content. From 0.3.1 to 0.5.0, FileService.download_from_url() in app/services/file_service.py calls requests.get(url) with zero URL validation. The file extension check occurs AFTER the HTTP request is already made, and can be bypassed by appending .mp3 to any internal URL. The /speech-to-text-url endpoint is unauthenticated. This vulnerability is fixed in 0.6.0."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.8,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-918",
"description": "CWE-918: Server-Side Request Forgery (SSRF)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-04-06T16:19:13.887Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/pavelzbornik/whisperX-FastAPI/security/advisories/GHSA-6rc7-r867-c635",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/pavelzbornik/whisperX-FastAPI/security/advisories/GHSA-6rc7-r867-c635"
},
{
"name": "https://github.com/pavelzbornik/whisperX-FastAPI/issues/256",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/pavelzbornik/whisperX-FastAPI/issues/256"
},
{
"name": "https://github.com/pavelzbornik/whisperX-FastAPI/commit/ef78fe2001deede5354031e4200d41c6a7e8cbfc",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/pavelzbornik/whisperX-FastAPI/commit/ef78fe2001deede5354031e4200d41c6a7e8cbfc"
}
],
"source": {
"advisory": "GHSA-6rc7-r867-c635",
"discovery": "UNKNOWN"
},
"title": "whisperX REST API: SSRF in download_from_url() \u2014 URL validation happens after HTTP request, extension bypass via .mp3"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-34981",
"datePublished": "2026-04-06T16:19:13.887Z",
"dateReserved": "2026-03-31T19:38:31.617Z",
"dateUpdated": "2026-04-06T18:45:41.844Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-34981",
"date": "2026-10-17",
"epss": "0.00417",
"percentile": "0.34529"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"product": "whisperX-FastAPI",
"vendor": "pavelzbornik",
"versions": [
{
"status": "affected",
"version": "\u003e= 0.3.1, \u003c 0.6.0"
}
]
}
],
"source": "security-advisories@github.com"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:pavelzbornik:whisperx_rest_api:*:*:*:*:*:*:*:*",
"matchCriteriaId": "71295380-F143-43BC-9FC7-A21F2B89FA10",
"versionEndExcluding": "0.6.0",
"versionStartIncluding": "0.3.1",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "The whisperX API is a tool for enhancing and analyzing audio content. From 0.3.1 to 0.5.0, FileService.download_from_url() in app/services/file_service.py calls requests.get(url) with zero URL validation. The file extension check occurs AFTER the HTTP request is already made, and can be bypassed by appending .mp3 to any internal URL. The /speech-to-text-url endpoint is unauthenticated. This vulnerability is fixed in 0.6.0."
}
],
"id": "CVE-2026-34981",
"lastModified": "2026-06-17T10:39:56.177",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.8,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 1.4,
"source": "security-advisories@github.com",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-34981",
"options": [
{
"exploitation": "poc"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-04-06T18:45:23.314461Z",
"version": "2.0.3"
}
}
]
},
"published": "2026-04-06T17:17:11.710",
"references": [
{
"source": "security-advisories@github.com",
"tags": [
"Patch"
],
"url": "https://github.com/pavelzbornik/whisperX-FastAPI/commit/ef78fe2001deede5354031e4200d41c6a7e8cbfc"
},
{
"source": "security-advisories@github.com",
"tags": [
"Issue Tracking",
"Patch"
],
"url": "https://github.com/pavelzbornik/whisperX-FastAPI/issues/256"
},
{
"source": "security-advisories@github.com",
"tags": [
"Exploit",
"Mitigation",
"Third Party Advisory"
],
"url": "https://github.com/pavelzbornik/whisperX-FastAPI/security/advisories/GHSA-6rc7-r867-c635"
}
],
"sourceIdentifier": "security-advisories@github.com",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-918"
}
],
"source": "security-advisories@github.com",
"type": "Secondary"
}
]
}
},
"vulnrichment": {
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-34981",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-04-06T18:45:23.314461Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-04-06T18:45:35.788Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "whisperX-FastAPI",
"vendor": "pavelzbornik",
"versions": [
{
"status": "affected",
"version": "\u003e= 0.3.1, \u003c 0.6.0"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "The whisperX API is a tool for enhancing and analyzing audio content. From 0.3.1 to 0.5.0, FileService.download_from_url() in app/services/file_service.py calls requests.get(url) with zero URL validation. The file extension check occurs AFTER the HTTP request is already made, and can be bypassed by appending .mp3 to any internal URL. The /speech-to-text-url endpoint is unauthenticated. This vulnerability is fixed in 0.6.0."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.8,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-918",
"description": "CWE-918: Server-Side Request Forgery (SSRF)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-04-06T16:19:13.887Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/pavelzbornik/whisperX-FastAPI/security/advisories/GHSA-6rc7-r867-c635",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/pavelzbornik/whisperX-FastAPI/security/advisories/GHSA-6rc7-r867-c635"
},
{
"name": "https://github.com/pavelzbornik/whisperX-FastAPI/issues/256",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/pavelzbornik/whisperX-FastAPI/issues/256"
},
{
"name": "https://github.com/pavelzbornik/whisperX-FastAPI/commit/ef78fe2001deede5354031e4200d41c6a7e8cbfc",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/pavelzbornik/whisperX-FastAPI/commit/ef78fe2001deede5354031e4200d41c6a7e8cbfc"
}
],
"source": {
"advisory": "GHSA-6rc7-r867-c635",
"discovery": "UNKNOWN"
},
"title": "whisperX REST API: SSRF in download_from_url() \u2014 URL validation happens after HTTP request, extension bypass via .mp3"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-34981",
"datePublished": "2026-04-06T16:19:13.887Z",
"dateReserved": "2026-03-31T19:38:31.617Z",
"dateUpdated": "2026-04-06T18:45:41.844Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
Loading…