https://cve.radiocsirt.org/rss/recent/all/10 Most recent entries from all 2026-10-03T18:06:31.555018+00:00 Vulnerability-Lookup csirt@opendfir.org python-feedgen Contains only the most 10 recent entries. https://cve.radiocsirt.org/vuln/bdu:2026-15492 bdu:2026-15492 2026-10-03T18:06:33.091266+00:00 bdu:2026-15492 https://cve.radiocsirt.org/vuln/bell-cve-2026-59885 BELL-CVE-2026-59885 2026-10-03T18:06:33.091368+00:00

Affected: Alpaquita:23: py3-asn1, Alpaquita:25: py3-asn1, Alpaquita:stream: py3-asn1

 https://cve.radiocsirt.org/vuln/brew-ansible-cve-2026-59885 BREW-ansible-CVE-2026-59885 — pyasn1: Quadratic complexity in OBJECT IDENTIFIER and RELATIVE-OID processing allows denial of service 2026-10-03T18:06:33.091404+00:00

Affected: Homebrew: ansible

### Impact The BER/CER/DER decoders process OBJECT IDENTIFIER and RELATIVE-OID values in quadratic time relative to the number of arcs. A small crafted payload (tens of kilobytes) containing an OID with many arcs consumes seconds of CPU per decode() call, allowing denial of service in any application that decodes untrusted ASN.1 data (certificates, LDAP, SNMP, Kerberos, etc.). The corresponding encoders have the same quadratic behavior, reachable when an application re-encodes previously decoded attacker-supplied values.

The arc-size limit introduced for CVE-2026-23490 bounds the byte length of an individual arc but not the number of arcs, so it does not mitigate this issue.

### Affected components ObjectIdentifierPayloadDecoder and RelativeOIDPayloadDecoder in pyasn1/codec/ber/decoder.py; ObjectIdentifierEncoder and RelativeOIDEncoder in pyasn1/codec/ber/encoder.py. The CER and DER codecs inherit these and are equally affected.

### Patches Fixed in pyasn1 0.6.4: arc accumulation in both decoders and encoders now runs in linear time.

### Workarounds Limit the size of untrusted ASN.1 input before decoding.

 https://cve.radiocsirt.org/vuln/certfr-2026-avi-1249 certfr-2026-avi-1249 — De multiples vulnérabilités ont été découvertes dans les produits VMware. Elles permettent à un attaquant de provoquer… 2026-10-03T18:06:33.091443+00:00 certfr-2026-avi-1249 https://cve.radiocsirt.org/vuln/cleanstart-2026-bc02149 Withdrawn: CLEANSTART-2026-BC02149 — Security fixes in airflow-3 3.1.8-r6 2026-10-03T18:06:33.091462+00:00

Withdrawn by the publisher.

Affected: CleanStart: airflow-3

Package airflow-3 version 3.1.8-r6 fixes 13 vulnerabilities: CVE-2026-53533, CVE-2026-59885, CVE-2026-59886, CVE-2026-59890, CVE-2026-49476...

 https://cve.radiocsirt.org/vuln/euvd-2026-336636 EUVD-2026-336636 2026-10-03T18:06:33.091484+00:00 EUVD-2026-336636 https://cve.radiocsirt.org/vuln/fkie_cve-2026-59885 fkie_cve-2026-59885 2026-10-03T18:06:33.091497+00:00

pyasn1 is a generic ASN.1 library for Python. Prior to 0.6.4, the BER, CER, and DER decoders process OBJECT IDENTIFIER and RELATIVE-OID values in quadratic time relative to the number of arcs, so a small crafted payload containing an OID with many arcs consumes excessive CPU per decode() call and can deny service to applications that decode untrusted ASN.1 data. The corresponding encoders have the same quadratic behavior when an application re-encodes previously decoded attacker-supplied values. This issue is fixed in version 0.6.4.

 https://cve.radiocsirt.org/vuln/ghsa-8ppf-4f7h-5ppj GHSA-8ppf-4f7h-5ppj — pyasn1: Quadratic complexity in OBJECT IDENTIFIER and RELATIVE-OID processing allows denial of service 2026-10-03T18:06:33.091522+00:00

Affected: PyPI: pyasn1

### Impact The BER/CER/DER decoders process OBJECT IDENTIFIER and RELATIVE-OID values in quadratic time relative to the number of arcs. A small crafted payload (tens of kilobytes) containing an OID with many arcs consumes seconds of CPU per decode() call, allowing denial of service in any application that decodes untrusted ASN.1 data (certificates, LDAP, SNMP, Kerberos, etc.). The corresponding encoders have the same quadratic behavior, reachable when an application re-encodes previously decoded attacker-supplied values.

The arc-size limit introduced for CVE-2026-23490 bounds the byte length of an individual arc but not the number of arcs, so it does not mitigate this issue.

### Affected components ObjectIdentifierPayloadDecoder and RelativeOIDPayloadDecoder in pyasn1/codec/ber/decoder.py; ObjectIdentifierEncoder and RelativeOIDEncoder in pyasn1/codec/ber/encoder.py. The CER and DER codecs inherit these and are equally affected.

### Patches Fixed in pyasn1 0.6.4: arc accumulation in both decoders and encoders now runs in linear time.

### Workarounds Limit the size of untrusted ASN.1 input before decoding.

 https://cve.radiocsirt.org/vuln/msrc_cve-2026-59885 msrc_CVE-2026-59885 — pyasn1: Quadratic complexity in OBJECT IDENTIFIER and RELATIVE-OID processing allows denial of service 2026-10-03T18:06:33.091551+00:00 msrc_CVE-2026-59885 https://cve.radiocsirt.org/vuln/oesa-2026-3198 OESA-2026-3198 — python-pyasn1 security update 2026-10-03T18:06:33.091569+00:00

Affected: openEuler:20.03-LTS-SP4: python-pyasn1, openEuler:22.03-LTS-SP4: python-pyasn1, openEuler:24.03-LTS-SP1: python-pyasn1, openEuler:24.03-LTS-SP3: python-pyasn1, openEuler:24.03-LTS-SP4: python-pyasn1

Abstract Syntax Notation One (ASN.1) is a technology for exchanging structured data in a universally understood, hardware agnostic way. Many industrial, security and telephony applications heavily rely on ASN.1. The pyasn1 library implements ASN.1 support in pure-Python. Security Fix(es):

pyasn1 is a generic ASN.1 library for Python. Prior to 0.6.4, the BER decoder shared by the CER and DER codecs parses long-form tags by accumulating continuation octets without an upper bound on the tag ID size, allowing a crafted input to force construction of an arbitrarily large integer with CPU cost growing quadratically and to trigger unhandled ValueError exceptions in Python 3.11+ error formatting paths. Any application decoding untrusted BER, CER, or DER input is affected. This issue is fixed in version 0.6.4.(CVE-2026-59884)

pyasn1 is a generic ASN.1 library for Python. Prior to 0.6.4, the BER, CER, and DER decoders process OBJECT IDENTIFIER and RELATIVE-OID values in quadratic time relative to the number of arcs, so a small crafted payload containing an OID with many arcs consumes excessive CPU per decode() call and can deny service to applications that decode untrusted ASN.1 data. The corresponding encoders have the same quadratic behavior when an application re-encodes previously decoded attacker-supplied values. This issue is fixed in version 0.6.4.(CVE-2026-59885)

pyasn1 is a generic ASN.1 library for Python. Prior to 0.6.4, the univ.Real type converted its mantissa, base…

 https://cve.radiocsirt.org/vuln/opensuse-su-2026:11318-1 openSUSE-SU-2026:11318-1 — python313-pyasn1-0.6.4-1.1 on GA media 2026-10-03T18:06:33.091616+00:00

python313-pyasn1-0.6.4-1.1 on GA media

 https://cve.radiocsirt.org/vuln/pysec-2026-3456 PYSEC-2026-3456 2026-10-03T18:06:33.091638+00:00

Affected: PyPI: pyasn1

pyasn1 is a generic ASN.1 library for Python. Prior to 0.6.4, the BER, CER, and DER decoders process OBJECT IDENTIFIER and RELATIVE-OID values in quadratic time relative to the number of arcs, so a small crafted payload containing an OID with many arcs consumes excessive CPU per decode() call and can deny service to applications that decode untrusted ASN.1 data. The corresponding encoders have the same quadratic behavior when an application re-encodes previously decoded attacker-supplied values. This issue is fixed in version 0.6.4.

 https://cve.radiocsirt.org/vuln/rhsa-2026:40236 RHSA-2026:40236 — Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update 2026-10-03T18:06:33.091660+00:00

python-pyasn1: pyasn1: Denial of Service via crafted BER input pyasn1: python-pyasn1: pyasn1: Denial of Service via crafted ASN.1 OBJECT IDENTIFIER

 https://cve.radiocsirt.org/vuln/suse-su-2026:22765-1 SUSE-SU-2026:22765-1 — Security update for python-pyasn1 2026-10-03T18:06:33.091681+00:00

Security update for python-pyasn1

 https://cve.radiocsirt.org/vuln/ubuntu-cve-2026-59885 UBUNTU-CVE-2026-59885 2026-10-03T18:06:33.091701+00:00

Affected: Ubuntu:Pro:14.04:LTS: pyasn1, Ubuntu:Pro:16.04:LTS: pyasn1, Ubuntu:Pro:18.04:LTS: pyasn1, Ubuntu:Pro:20.04:LTS: pyasn1, Ubuntu:22.04:LTS: pyasn1, Ubuntu:24.04:LTS: pyasn1, Ubuntu:26.04:LTS: pyasn1

pyasn1 is a generic ASN.1 library for Python. Prior to 0.6.4, the BER, CER, and DER decoders process OBJECT IDENTIFIER and RELATIVE-OID values in quadratic time relative to the number of arcs, so a small crafted payload containing an OID with many arcs consumes excessive CPU per decode() call and can deny service to applications that decode untrusted ASN.1 data. The corresponding encoders have the same quadratic behavior when an application re-encodes previously decoded attacker-supplied values. This issue is fixed in version 0.6.4.