Red Hat Security Advisory: python3.12-lxml security update
Affects Red Hat python3.12-lxmlSource GCVE Database
Not known to be exploited · CVSS 8.2 High.
Data as of 26 Oct 2026, 17:16 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 22% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:NExploitation evidence
Disclosed: evidence found.
CVE published 20 Aug 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: 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 26 Oct 2026.
What to do
AI-suggested
Red Hat has released updated python3.12-lxml packages that address this vulnerability. Users of affected Red Hat Enterprise Linux 9.4 variants should apply the provided security update (python3.12-lxml-4.9.3-2.el9_4.1) as detailed in Red Hat advisory RHSA-2026:74082 and the linked article https://access.redhat.com/articles/11258. Applying this update remediates the vulnerability. No additional mitigation steps are indicated by the vendor.
Description
A security vulnerability (CVE-2026-49825) affecting the lxml library used in Python 3.12 has been identified and addressed by Red Hat. The flaw involves a URL bypass vulnerability in the lxml HTML cleaner component due to a missing xlink:href attribute. This vulnerability has been rated as having an important security impact by Red Hat and affects multiple Red Hat Enterprise Linux 9.4 variants. A security update is available to remediate this issue.