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CVE-2026-6019VulnerabilityPublished Updated

Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update

Affects Red Hat cpythonSource GCVE Database

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Authoritative record:CVE-2026-6019· Low 2.1

Not known to be exploited · CVSS 2.1 Low : upgrade Red Hat cpython to 3.14.5 or 3.13.14 when convenient.

Data as of 29 Oct 2026, 19:04 UTC

CVSS 4.0 base score
2.1Low
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 11% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 3.14.5, 3.13.14
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 22 Apr 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 29 Oct 2026.

What to do

Upgrade python to 3.14.5 or 3.13.14.

Affected software

ProductAffectedFixed in
PyPIcpythonpkg:pypi/cpythonOther threatsAffected
  • =3.14.0
Fixed in–
Bitnamipythonpkg:bitnami/pythonOther threatsAffected
  • <3.13.14
  • >=3.14.0 <3.14.5
Fixed in
  • 3.13.14
  • 3.14.5

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 not provided an official fix that meets their criteria for deployment and stability at this time. No effective mitigation is currently available that is easy to deploy or broadly applicable. Customers with a Red Hat Technical Account Manager (TAM) can seek direct guidance.

Description

http.cookies.Morsel.js_output() returns an inline <script> snippet and only escapes " for JavaScript string context. It does not neutralize the HTML parser-sensitive sequence </script> inside the generated script element. Mitigation base64-encodes the cookie value to disallow escaping using cookie value.

References

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