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CVE-2026-49825VulnerabilityPublished Updated

Red Hat Security Advisory: python3.12-lxml security update

Affects Red Hat python3.12-lxmlSource GCVE Database

0
Authoritative record:CVE-2026-49825· High 8.2

Not known to be exploited · CVSS 8.2 High.

Data as of 26 Oct 2026, 17:16 UTC

CVSS 3.1 base score
8.2High
How severe the flaw is on the 0–10 CVSS scale.
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:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 20 Aug 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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.

References

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