Microsoft security update for CVE-2026-124249
🔗 CVE IDs covered (1)
📋 Microsoft's advisory
EchelonGraph does not copy Microsoft's advisory page: its FAQ and remediation text are not shown here. Read the advisory on https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-124249. This page also shows what EchelonGraph holds for CVE-2026-124249, with the description from its CVE record, which the CVE Numbering Authority that assigned the CVE wrote: for a CVE Microsoft assigned, often in the words of Microsoft's own advisory.
🎯 Affected products6
- azl3 python-py 1.11.0-1 on Azure Linux 3.0
- azl3 python3 3.12.16-1 on Azure Linux 3.0
- azl3 python3 3.12.16-2 on Azure Linux 3.0
- azl3 tensorflow 2.16.1-11 on Azure Linux 3.0
- azl4 python3-docs 3.14.10-2.azl4 on Azure Linux 4.0
- azl4 python3.14 3.14.10-6.azl4 on Azure Linux 4.0
✅ Updates Microsoft lists: 1 update
1 row: one per KB article or update, update type and fixed build. Their details are on Microsoft's advisory.
| KB article | Update | Fixed build |
|---|---|---|
| — | Security Update | — |
🧭 EchelonGraph on CVE-2026-124249
- EchelonGraph score
- 6.3 MEDIUM
- CISA KEV
- Not listed
- Fix status
- A fix is available — apply it.
Description from the CVE record (CVE.org), as published by its numbering authority
http.cookiejar.CookieJar deleted a stored cookie when a response carried an already expired Set-Cookie header for it, using the Domain and Path attributes from the header without consulting the cookie policy. A server could therefore delete cookies belonging to other domains from a shared cookie jar, such as the one used by urllib's HTTPCookieProcessor. The fix consults the cookie policy before an expired cookie may delete an existing one, as required by RFC 6265 section 5.3.
Published by Python Software Foundation, the CVE Numbering Authority that assigned CVE-2026-124249, in its CVE record at CVE.org; reused under the CVE Program's Terms of Use (its licence and MITRE's copyright notice are in our Terms of Service).