Description
pyasn1 is a generic ASN.1 library for Python. Prior to 0.6.2, a Denial-of-Service issue has been found that leads to memory exhaustion from malformed RELATIVE-OID with excessive continuation octets. This vulnerability is fixed in 0.6.2.
Metrics
CVSS 3.1 7.5/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| pyasn1 | pyasn1 | < 0.6.2 |
| Red Hat | Red Hat Ansible Automation Platform 2.5 for RHEL 8 | — |
| Red Hat | Red Hat Ansible Automation Platform 2.5 for RHEL 8 | — |
| Red Hat | Red Hat Ansible Automation Platform 2.5 for RHEL 9 | — |
| Red Hat | Red Hat Ansible Automation Platform 2.5 for RHEL 9 | — |
| Red Hat | Red Hat Ansible Automation Platform 2.6 for RHEL 9 | — |
| Red Hat | Red Hat Ansible Automation Platform 2.6 for RHEL 9 | — |
| Red Hat | Red Hat Enterprise Linux 10 | — |
| Red Hat | Red Hat Enterprise Linux 10 | — |
| Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support | — |
| Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support | — |
| Red Hat | Red Hat Enterprise Linux 7 Extended Lifecycle Support | — |
| Red Hat | Red Hat Enterprise Linux 7 Extended Lifecycle Support | — |
| Red Hat | Red Hat Enterprise Linux 8 | — |
| Red Hat | Red Hat Enterprise Linux 8 | — |
| Red Hat | Red Hat Enterprise Linux 8 | — |
| Red Hat | Red Hat Enterprise Linux 8.2 Advanced Update Support | — |
| Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | — |
| Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | — |
| Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | — |
| Red Hat | Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | — |
| Red Hat | Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | — |
| Red Hat | Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | — |
| Red Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | — |
| Red Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | — |
| Red Hat | Red Hat Enterprise Linux 8.6 Telecommunications Update Service | — |
| Red Hat | Red Hat Enterprise Linux 8.6 Telecommunications Update Service | — |
| Red Hat | Red Hat Enterprise Linux 8.6 Telecommunications Update Service | — |
| Red Hat | Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions | — |
| Red Hat | Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions | — |
| Red Hat | Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions | — |
| Red Hat | Red Hat Enterprise Linux 8.8 Telecommunications Update Service | — |
| Red Hat | Red Hat Enterprise Linux 8.8 Telecommunications Update Service | — |
| Red Hat | Red Hat Enterprise Linux 8.8 Telecommunications Update Service | — |
| Red Hat | Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | — |
| Red Hat | Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | — |
| Red Hat | Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | — |
| Red Hat | Red Hat Enterprise Linux 9 | — |
| Red Hat | Red Hat Enterprise Linux 9 | — |
| Red Hat | Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions | — |
| Red Hat | Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions | — |
| Red Hat | Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions | — |
| Red Hat | Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions | — |
| Red Hat | Red Hat Enterprise Linux 9.4 Extended Update Support | — |
| Red Hat | Red Hat Enterprise Linux 9.4 Extended Update Support | — |
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support | — |
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support | — |
| Red Hat | Red Hat OpenShift Container Platform 4.17 | — |
| Red Hat | Red Hat OpenShift Container Platform 4.18 | — |
| Red Hat | Red Hat OpenStack Platform 16.2 | — |
References
- https://github.com/pyasn1/pyasn1/commit/3908f144229eed4df24bd569d16e5991ace44970Patch
- https://github.com/pyasn1/pyasn1/releases/tag/v0.6.2Product, Release Notes
- https://github.com/pyasn1/pyasn1/security/advisories/GHSA-63vm-454h-vhhqVendor Advisory
- https://lists.debian.org/debian-lts-announce/2026/02/msg00002.htmlVendor Advisory
- https://access.redhat.com/errata/RHSA-2026:13508
- https://access.redhat.com/errata/RHSA-2026:13512
- https://access.redhat.com/errata/RHSA-2026:13545
- https://access.redhat.com/errata/RHSA-2026:13553
- https://access.redhat.com/errata/RHSA-2026:14020
- https://access.redhat.com/errata/RHSA-2026:17446
- https://access.redhat.com/errata/RHSA-2026:17595
- https://access.redhat.com/errata/RHSA-2026:17611
- https://access.redhat.com/errata/RHSA-2026:1903
- https://access.redhat.com/errata/RHSA-2026:1904
- https://access.redhat.com/errata/RHSA-2026:1905
- https://access.redhat.com/errata/RHSA-2026:1906
- https://access.redhat.com/errata/RHSA-2026:19712
- https://access.redhat.com/errata/RHSA-2026:2221
- https://access.redhat.com/errata/RHSA-2026:2299
- https://access.redhat.com/errata/RHSA-2026:2300
- https://access.redhat.com/errata/RHSA-2026:2302
- https://access.redhat.com/errata/RHSA-2026:2303
- https://access.redhat.com/errata/RHSA-2026:2309
- https://access.redhat.com/errata/RHSA-2026:24476
- https://access.redhat.com/errata/RHSA-2026:24483
- https://access.redhat.com/errata/RHSA-2026:2453
- https://access.redhat.com/errata/RHSA-2026:2460
- https://access.redhat.com/errata/RHSA-2026:2483
- https://access.redhat.com/errata/RHSA-2026:2486
- https://access.redhat.com/errata/RHSA-2026:24866
- https://access.redhat.com/errata/RHSA-2026:24977
- https://access.redhat.com/errata/RHSA-2026:2712
- https://access.redhat.com/errata/RHSA-2026:2758
- https://access.redhat.com/errata/RHSA-2026:28042
- https://access.redhat.com/errata/RHSA-2026:30088
- https://access.redhat.com/errata/RHSA-2026:3354
- https://access.redhat.com/errata/RHSA-2026:3359
- https://access.redhat.com/errata/RHSA-2026:37275
- https://access.redhat.com/errata/RHSA-2026:3958
- https://access.redhat.com/errata/RHSA-2026:3959
- https://access.redhat.com/errata/RHSA-2026:39894
- https://access.redhat.com/errata/RHSA-2026:4138
- https://access.redhat.com/errata/RHSA-2026:4139
- https://access.redhat.com/errata/RHSA-2026:4140
- https://access.redhat.com/errata/RHSA-2026:4141
- https://access.redhat.com/errata/RHSA-2026:4142
- https://access.redhat.com/errata/RHSA-2026:4143
- https://access.redhat.com/errata/RHSA-2026:4144
- https://access.redhat.com/errata/RHSA-2026:4145
- https://access.redhat.com/errata/RHSA-2026:4146
- https://access.redhat.com/errata/RHSA-2026:4147
- https://access.redhat.com/errata/RHSA-2026:4148
- https://access.redhat.com/errata/RHSA-2026:41928
- https://access.redhat.com/errata/RHSA-2026:42644
- https://access.redhat.com/errata/RHSA-2026:4943
- https://access.redhat.com/errata/RHSA-2026:54757
- https://access.redhat.com/errata/RHSA-2026:5606
- https://access.redhat.com/security/cve/CVE-2026-23490
- https://bugzilla.redhat.com/show_bug.cgi?id=2430472
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23490.json
Timeline
- Published
- Jan 16, 2026
- Last modified
- Sep 9, 2026
- NVD status
- Modified