Bundesamt für Sicherheit in der Informationstechnik Amazon · Ruby: Mehrere Schwachstellen ermöglichen Codeausführung
Affects Bundesamt für Sicherheit in der Informationstechnik AmazonSource GCVE Database
Mentioned vulnerabilities
Not known to be exploited · CVSS 10.0 Critical : upgrade to 4.0.9 as a priority.
Data as of 10 Nov 2026, 11:35 UTC
Thin evidence
One scorer or none| CNA (GitLab) | CVSS 3.1 | 10.0 |
|---|
- Patch
- Available – fixed in 4.0.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 22 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 10 Nov 2026.
What to do
Upgrade ruby to 4.0.9.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
RubyGemsrubypkg:gem/rubyOther 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
A fixed version of Ruby (4.0.9) is available and included in Red Hat Enterprise Linux 10 updates. Users should apply the official Red Hat update RHSA-2026:96233 to remediate these vulnerabilities. No additional mitigation steps are indicated by the vendor.
Description
Multiple integer overflow vulnerabilities in the Ruby 4.0 regular expression compiler could allow code execution. These issues affect Ruby versions prior to 4.0.9 and have been addressed in the 4.0.9 release. Red Hat Enterprise Linux 10 users should update to the fixed version to mitigate the risk.
References
- wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-4416.json (opens in a new tab)
- wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-4416 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:96233 (opens in a new tab)
- github.com/rapid7/metasploit-framework/pull/22017 (opens in a new tab)
- lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/BPD3VWWXCLMZNCO46RWGFSZG6Y73J2IV/ (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:96235 (opens in a new tab)
- alas.aws.amazon.com/AL2/ALAS2-2026-4091.html (opens in a new tab)
- alas.aws.amazon.com/AL2/ALAS2-2026-4090.html (opens in a new tab)
- linux.oracle.com/errata/ELSA-2026-96233.html (opens in a new tab)
- linux.oracle.com/errata/ELSA-2026-96235.html (opens in a new tab)