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CVE-2026-124249 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

No CVSS 3.x data is available for this CVE.

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/python/cpython/issues/161569	[email protected]
https://github.com/python/cpython/pull/161570	[email protected]
https://mail.python.org/archives/list/[email protected]/thread/Y6IKNZ2VZUS2L6CLQICSFUEMCLT7OLTY/	[email protected]

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-346	Origin Validation Error	[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

1 change record found show changes