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VulnerabilityPublished Updated

CVE-2026-96889: Red Hat Enterprise Linux 10 librsvg · Use After Free

Affects Red Hat Enterprise Linux 10 librsvgSource CVE Database V5

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Not known to be exploited · CVSS 7.8 High : upgrade Red Hat Enterprise Linux 10 librsvg to 2.63.1 soon.

Data as of 6 Nov 2026, 23:24 UTC

CVSS 3.1 base score
7.8High
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (redhat)CVSS 3.17.8
EPSS
0.5% chance of exploitation in 30 days – higher than 47% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 2.63.1
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 23 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: evidence found.

    Public exploit code: GitHub proofs of concept

  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), GitHub proofs of concept, the Metasploit, Exploit-DB and nuclei-templates index as of 6 Nov 2026.

What to do

Upgrade librsvg/librsvg to 2.63.1.

Affected software

ProductAffectedFixed in
crates.iolibrsvg/librsvgpkg:cargo/librsvg/librsvgOther threatsAffected
  • <2.63.1
Fixed in
  • 2.63.1

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

A fix is available in librsvg version 2.63.1. Users and administrators should update to this version or later to remediate the vulnerability. No effective workaround or temporary mitigation meeting Red Hat's criteria is available. Since exploitation requires user interaction (e.g., opening a malicious SVG file), caution should be exercised when handling untrusted SVG content.

Description

CVE-2026-96889 is a use-after-free vulnerability in librsvg affecting Red Hat Enterprise Linux 10. It occurs when processing SVG documents with nested XML inclusions containing duplicate entity declarations, causing the library to free an XML entity still in use. This flaw can lead to denial of service or arbitrary code execution. Exploitation requires user interaction, such as opening a malicious SVG file. The issue is fixed in librsvg version 2.63.1.

References

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