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CVE-2026-53938VulnerabilityPublished Updated

Bundesamt für Sicherheit in der Informationstechnik Debian · Red Hat Enterprise Linux (cjose): Schwachstelle ermöglicht Denial of Service und Manipulation von Daten

Affects Bundesamt für Sicherheit in der Informationstechnik DebianSource GCVE Database

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Authoritative record:CVE-2026-53938· High 8.2

Not known to be exploited · CVSS 8.2 High : upgrade Debian cjose to 0.6.2.5 soon.

Data as of 9 Nov 2026, 13:03 UTC

CVSS 3.1 base score
8.2High
How severe the flaw is on the 0–10 CVSS scale.
Patch
Available – fixed in 0.6.2.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 8 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 9 Nov 2026.

What to do

Upgrade cjose and openidc/cjose to 0.6.2.5.

Affected software

ProductAffectedFixed in
OpenIDCcjoseAffected
  • <0.6.2.5
Fixed in
  • 0.6.2.5
GitHubopenidc/cjosepkg:github/openidc/cjoseOther threatsAffected
  • <0.6.2.5
Fixed in
  • 0.6.2.5

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

AI-suggested

Red Hat has released updated cjose packages for Red Hat Enterprise Linux 9.2 to fix this vulnerability. Users should apply the official security update as described in Red Hat advisory RHSA-2026:73017. Details and update instructions are available at https://access.redhat.com/articles/11258. No additional mitigation is required beyond applying the official patch.

Description

A heap buffer overflow vulnerability exists in the cjose library used in Red Hat Enterprise Linux 9.2. This flaw occurs during AES Key Wrap decryption and can lead to denial of service and potential data manipulation. An important security update addressing this issue is available for affected Red Hat Enterprise Linux 9.2 variants.

References

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