Bundesamt für Sicherheit in der Informationstechnik Oracle · Red Hat Enterprise Linux (python-jwcrypto, sos, hickory-resolver, libimobiledevice, gcc, python-oauthlib): Mehrere
Affects Bundesamt für Sicherheit in der Informationstechnik OracleSource GCVE Database
Mentioned vulnerabilities
Not known to be exploited · CVSS 6.2 Medium · fixed in 8.6 : update Bundesamt für Sicherheit in der Informationstechnik Oracle when convenient.
Data as of 12 Nov 2026, 12:06 UTC
Thin evidence
One scorer or none| CNA (redhat) | CVSS 3.1 | 6.2 |
|---|
- Patch
- Available – fixed in 8.6
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 30 Oct 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 12 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Red Hat Enterprise Linux 10gcc-toolset-15-gcc | Affected– | Fixed in– |
| Red Hat Enterprise Linux 10gcc-toolset-16-gcc | Affected– | Fixed in– |
| Red Hat Enterprise Linux 10gcc | Affected– | Fixed in– |
| Red Hat Enterprise Linux 8gcc | Affected– | Fixed in– |
| Red Hat Enterprise Linux 9gcc | Affected– | Fixed in– |
| Red Hat Enterprise Linux 9gcc-toolset-15-gcc | Affected– | Fixed in– |
AI-suggested
A fix for this vulnerability is available in Red Hat Enterprise Linux version 8.6. Users should upgrade to version 8.6 or later to remediate this issue. No other effective mitigations meeting Red Hat's criteria are currently available. Applying the official update is the recommended course of action.
Description
A vulnerability in the jwcrypto library used in Red Hat Enterprise Linux 9 allows a remote unauthenticated attacker to cause a denial of service by supplying a JSON Web Key (JWK) with an excessively large key_ops array. The key_ops member is validated using an inefficient O(n^2) algorithm without bounding the array length, leading to excessive CPU consumption during validation. This flaw affects Red Hat Enterprise Linux versions prior to 8.6 and has been fixed in version 8.6.
References
- wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-4472.json (opens in a new tab)
- wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-4472 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:97858 (opens in a new tab)
- access.redhat.com/security/cve/cve-2026-92091 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:97867 (opens in a new tab)
- access.redhat.com/security/cve/cve-2026-79655 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:97868 (opens in a new tab)
- access.redhat.com/security/cve/cve-2026-93657 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:98105 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2478652 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2478508 (opens in a new tab)
- bohmiiiidd.kyubisec.com (opens in a new tab)
- github.com/oauthlib/oauthlib/security/advisories/GHSA-7984-qgvg-3j9c (opens in a new tab)
- github.com/sosreport/sos/issues/4460 (opens in a new tab)
- github.com/latchset/jwcrypto/security/advisories/GHSA-pwgw-f7xr-863h (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:98648 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:98076 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:98075 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:98061 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:99023 (opens in a new tab)