Red Hat Security Advisory: python3.14-cryptography security update
Red Hat has issued a security advisory for python3.14-cryptography addressing two vulnerabilities: CVE-2026-69248 and CVE-2026-69249. The first vulnerability involves the python-cryptography verifier accepting wildcard DNS names, allowing escape from permittedSubtrees. The second involves duplicate self-signed intermediates causing exponential path-building. These issues affect Red Hat Enterprise Linux 9 and related variants. A security update is available to address these vulnerabilities.
AI Analysis
Technical Summary
This advisory covers two security flaws in the python-cryptography package used in Red Hat Enterprise Linux 9. CVE-2026-69248 is a vulnerability where the python-cryptography verifier accepts wildcard DNS names improperly, allowing escape from permittedSubtrees, which is a certificate validation issue (CWE-295). CVE-2026-69249 involves duplicate self-signed intermediates causing exponential path-building, potentially impacting certificate path validation performance or behavior (CWE-770). Red Hat has released updated python3.14-cryptography packages to fix these issues.
Potential Impact
The vulnerabilities could allow improper certificate validation due to acceptance of wildcard DNS names escaping permittedSubtrees and cause exponential path-building due to duplicate self-signed intermediates. This may lead to security bypass or denial of service conditions related to certificate verification in applications using python-cryptography on affected Red Hat Enterprise Linux 9 systems.
Mitigation Recommendations
Red Hat has released updated python3.14-cryptography packages that fix these vulnerabilities. Users should apply the security update as described in the Red Hat advisory RHSA-2026:64774. For detailed update instructions, refer to https://access.redhat.com/articles/11258. No additional mitigations are indicated by the vendor advisory.
Red Hat Security Advisory: python3.14-cryptography security update
Description
Red Hat has issued a security advisory for python3.14-cryptography addressing two vulnerabilities: CVE-2026-69248 and CVE-2026-69249. The first vulnerability involves the python-cryptography verifier accepting wildcard DNS names, allowing escape from permittedSubtrees. The second involves duplicate self-signed intermediates causing exponential path-building. These issues affect Red Hat Enterprise Linux 9 and related variants. A security update is available to address these vulnerabilities.
Affected software
pkg:rpm/redhat/python3-cryptographyRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This advisory covers two security flaws in the python-cryptography package used in Red Hat Enterprise Linux 9. CVE-2026-69248 is a vulnerability where the python-cryptography verifier accepts wildcard DNS names improperly, allowing escape from permittedSubtrees, which is a certificate validation issue (CWE-295). CVE-2026-69249 involves duplicate self-signed intermediates causing exponential path-building, potentially impacting certificate path validation performance or behavior (CWE-770). Red Hat has released updated python3.14-cryptography packages to fix these issues.
Potential Impact
The vulnerabilities could allow improper certificate validation due to acceptance of wildcard DNS names escaping permittedSubtrees and cause exponential path-building due to duplicate self-signed intermediates. This may lead to security bypass or denial of service conditions related to certificate verification in applications using python-cryptography on affected Red Hat Enterprise Linux 9 systems.
Mitigation Recommendations
Red Hat has released updated python3.14-cryptography packages that fix these vulnerabilities. Users should apply the security update as described in the Red Hat advisory RHSA-2026:64774. For detailed update instructions, refer to https://access.redhat.com/articles/11258. No additional mitigations are indicated by the vendor advisory.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:64774
- Cve Count
- 2
- Additional Cves
- ["CVE-2026-69249"]
- Cvss Version
- null
Threat ID: 6a9f910bacd9273b49ff26a9
Added to database: 09/08/2026, 04:37:31 UTC
Last enriched: 09/08/2026, 05:22:32 UTC
Last updated: 09/08/2026, 05:32:20 UTC
Views: 2
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.