Bundesamt für Sicherheit in der Informationstechnik Debian · Red Hat Enterprise Linux (cjose): Schwachstelle ermöglicht Manipulation von Daten
Affects Bundesamt für Sicherheit in der Informationstechnik DebianSource GCVE Database
Not known to be exploited · CVSS 9.1 Critical : upgrade Debian cjose to 0.6.2.6 as a priority.
Data as of 9 Nov 2026, 13:02 UTC
- Patch
- Available – fixed in 0.6.2.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:NExploitation evidence
Disclosed: evidence found.
CVE published 9 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: 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 9 Nov 2026.
What to do
Upgrade cjose and openidc/cjose to 0.6.2.6.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| OpenIDCcjose | Affected
| Fixed in
|
GitHubopenidc/cjosepkg:github/openidc/cjoseOther threats | Affected
| Fixed in
|
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 official patches for this vulnerability in Red Hat Enterprise Linux 10. Users should apply the updates as described in the Red Hat advisory RHSA-2026:80605 and the referenced article https://access.redhat.com/articles/11258 to remediate the issue. No additional mitigation steps are indicated beyond applying the vendor-provided update.
Description
A critical security vulnerability (CVE-2026-53939) affects the cjose library in Red Hat Enterprise Linux 10. The flaw involves the use of an all-zero Content Encryption Key for AES-CBC-HMAC JWE encryption, which could allow manipulation of encrypted data. Red Hat has released an update to address this issue for multiple architectures and product variants of RHEL 10.
References
- wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-3863.json (opens in a new tab)
- wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-3863 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:80605 (opens in a new tab)
- nvd.nist.gov/vuln/detail/cve-2026-53939 (opens in a new tab)
- linux.oracle.com/errata/ELSA-2026-80605.html (opens in a new tab)
- linux.oracle.com/errata/ELSA-2026-80605.html (opens in a new tab)
- errata.build.resf.org/RLSA-2026:80605 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:83224 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:92156 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:92154 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:92158 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:92155 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:92159 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:92160 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:92157 (opens in a new tab)
- linux.oracle.com/errata/ELSA-2026-92145.html (opens in a new tab)
- errata.build.resf.org/RLSA-2026:92157 (opens in a new tab)
- errata.build.resf.org/RLSA-2026:92145 (opens in a new tab)
- linux.oracle.com/errata/ELSA-2026-92157.html (opens in a new tab)
- lists.debian.org/debian-lts-announce/2026/11/msg00011.html (opens in a new tab)