Risk Scores
CVSS v3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu | pyasn1 |
Timeline
- Mar 30, 2026 CVE Published
- Mar 31, 2026 Distribution Patch
=========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2026.3126 USN-8129-1: pyasn1 vulnerability 31 March 2026 =========================================================================== AUSCERT Security Bulletin Summary --------------------------------- Product: pyasn1 Publisher: Ubuntu Operating System: Ubuntu Resolution: Patch/Upgrade CVE Names: CVE-2026-30922 Original Bulletin: https://ubuntu.com/security/notices/USN-8129-1 Comment: CVSS (Max): 7.5 CVE-2026-30922 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) CVSS Source: Ubuntu Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H EPSS (Max): 0.0% (15th) CVE-2026-30922 2026-03-30 - --------------------------BEGIN INCLUDED TEXT-------------------- USN-8129-1: pyasn1 vulnerability Publication date 30 March 2026 Overview pyasn1 could be made to consume resources and crash if it received specially crafted input. Releases 25.10 24.04 LTS 22.04 LTS --------------------------------------------------------------------------------- Open side navigation Packages o pyasn1 - ASN.1 library for Python Details It was discovered that pyasn1 incorrectly handled recursion when decoding ASN.1 data. An attacker could use this issue to cause pyasn1 to consume resources, leading to a denial of service. Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu Release Package Version 25.10 questing python3-pyasn1 - 0.6.1-1ubuntu0.2 24.04 LTS noble python3-pyasn1 - 0.4.8-4ubuntu0.2 22.04 LTS jammy python3-pyasn1 - 0.4.8-1ubuntu0.2 --------------------------------------------------------------------------------- References o CVE-2026-30922 - --------------------------END INCLUDED TEXT---------------------- You have received this e-mail bulletin as a result of your organisation's registration with AUSCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AUSCERT's members. As AUSCERT did not write the document quoted above, AUSCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AUSCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://portal.auscert.org.au/bulletins/ =========================================================================== AUSCERT The University of Queensland, Brisbane QLD 4072 Australia e: auscert@auscert.org.au t: +61 (0)7 3365 4417 Allies in Cyber Security ===========================================================================
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu | pyasn1 |