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CVE-2015-2296

19
FAUCET Score

CVE-2015-2296 describes a session fixation vulnerability in the 'requests' Python library, versions 2.1.0 through 2.5.3, affecting products like Canonical Ubuntu and Mageia. This medium-severity flaw (CVSS 6.8) allows remote attackers to fixate user sessions by manipulating cookies during redirects, potentially leading to information disclosure, unauthorized access, or denial of service. Despite its age, there is no evidence of active exploitation, public exploit code, or significant community discussion, indicating a low current threat level.

Impacted Technologies

VendorProductVersion(s)CPE
4.0CPE matchmatch criteria
cpe:2.3:o:mageia_project:mageia:4.0:*:*:*:*:*:*:*
2.1.0CPE matchmatch criteria
cpe:2.3:a:python:requests:2.1.0:*:*:*:*:*:*:*
2.2.1CPE matchmatch criteria
cpe:2.3:a:python:requests:2.2.1:*:*:*:*:*:*:*
2.3.0CPE matchmatch criteria
cpe:2.3:a:python:requests:2.3.0:*:*:*:*:*:*:*
2.4.0CPE matchmatch criteria
cpe:2.3:a:python:requests:2.4.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

6.8MEDIUM

AV:N/AC:M/Au:N/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.41%
Probability of exploitation in next 30 days
EPSS Percentile
87.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0341 is in the 82nd percentile among its peer group of 19,953 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

pippatch availablevia ghsa
Product: requestsFixed in: 2.6.0
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux OpenStack Platform 6 (Juno)Fixed in: python-requests
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux OpenStack Platform 6 (Juno) InstallerFixed in: python-requests
redhatend of lifevia redhat_api
Product: Red Hat Satellite 6Fixed in: python-requests

Vendor Advisories (2)

pipGHSA-pg2w-x9wp-vw92medium

Python Requests Session Fixation

May 13, 2022
redhatCVE-2015-2296Moderate

python-requests: session fixation and cookie stealing vulnerability

Mar 14, 2015

References

advisories.mageia.org / MGASA-2015-0120.html
lists.fedoraproject.org / pipermail/package-announce/2015-March/153594.html
github.com / kennethreitz/requests/commit/3bd8afbff29e50b38f889b2f688785a669b9aafc
warehouse.python.org / project/requests/2.6.0
Vendor Advisory
mandriva.com / security/advisories
openwall.com / lists/oss-security/2015/03/14/4
openwall.com / lists/oss-security/2015/03/15/1
ubuntu.com / usn/USN-2531-1