CVE-2015-2296

Severity: medium (CVSS 6.8 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2015-03-18 · updated 2026-06-17

Description

The resolve_redirects function in sessions.py in requests 2.1.0 through 2.5.3 allows remote attackers to conduct session fixation attacks via a cookie without a host value in a redirect.

Affected products

Canonical Ubuntu Linux: 14.04, 14.10
Mageia Project Mageia: 4.0
psf requests: 2.1.0, 2.2.1, 2.3.0, 2.4.0, 2.4.1, 2.4.2 (+5)

References

http://advisories.mageia.org/MGASA-2015-0120.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-March/153594.html
http://www.mandriva.com/security/advisories?name=MDVSA-2015:133
http://www.openwall.com/lists/oss-security/2015/03/14/4
http://www.openwall.com/lists/oss-security/2015/03/15/1
http://www.ubuntu.com/usn/USN-2531-1
https://github.com/kennethreitz/requests/commit/3bd8afbff29e50b38f889b2f688785a669b9aafc
https://warehouse.python.org/project/requests/2.6.0/
http://advisories.mageia.org/MGASA-2015-0120.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-March/153594.html
http://www.mandriva.com/security/advisories?name=MDVSA-2015:133
http://www.openwall.com/lists/oss-security/2015/03/14/4

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