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VulnerabilityPublished Updated

CVE-2026-96275: Red Hat Enterprise Linux 10 · Improper Limitation of a Pathname to a Restricted Directory

Affects Red Hat Enterprise Linux 10Source CVE Database V5

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Not known to be exploited · CVSS 8.8 High.

Data as of 7 Nov 2026, 11:40 UTC

CVSS 3.1 base score
8.8High
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (redhat)CVSS 3.18.8
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.
CVSS:3.1/AV:N/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: 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 7 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
Red Hat Enterprise Linux 10flatpakAffected–Fixed in–
Red Hat Enterprise Linux 10.0 Extended Update SupportflatpakAffected–Fixed in–
Red Hat Enterprise Linux 8flatpakAffected–Fixed in–
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update SupportflatpakAffected–Fixed in–
Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-OnflatpakAffected–Fixed in–
Red Hat Enterprise Linux 9flatpakAffected–Fixed in–

AI-suggested

Avoid installing Flatpak extensions from non-trusted sources. Since exploitation requires adding or trusting a malicious repository and initiating an install or update, restricting repository sources is critical. Check the Red Hat advisory for any official patches or updates and apply them promptly if available. Patch status is not explicitly confirmed in the advisory; therefore, verify current remediation guidance from Red Hat.

Description

A malicious or compromised Flatpak repository can write attacker-controlled content to arbitrary locations on the host filesystem via extract_extra_data(). On system installs, the write happens as root. Two issues combine: `files/extra` is resolved via path operations that follow symlinks, and blob names from `xa.extra-data-sources` are not sanitized against `..` traversal.

References

Community reviews

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