Red Hat Security Advisory: python-pyasn1 security update
Affects Red Hat python-pyasn1Source GCVE Database
Not known to be exploited.
Data as of 31 Oct 2026, 20:20 UTC
Rated by Threat Radar · No CVSS score from NVD or the CNA
- EPSS
- 0.7% chance of exploitation in 30 days – higher than 55% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Exploitation evidence
Disclosed: evidence found.
CVE published 10 Mar 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 31 Oct 2026.
What to do
AI-suggested
Red Hat has released updated python-pyasn1 packages that address this vulnerability. Users should apply the security update available for Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions and Extended Life Cycle variants as described in the Red Hat advisory RHSA-2026:4142. No additional mitigation steps are indicated beyond applying the official patch.
Description
A denial of service vulnerability exists in the python-pyasn1 library due to memory exhaustion triggered by malformed RELATIVE-OID input. This issue affects Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions and Extended Life Cycle variants. The vulnerability is rated as having an important security impact by Red Hat. A security update addressing this issue is available.