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CVE-2015-2296
The resolve_redirects function in sessions.py in requests 2.1.0 through 2.5.3 allows remote attackers to conduct session fixation attacks…
- 6.8MediumCVSS base score
- 3.2%Exploitation in 30 daysEPSS · top 12% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By mitre
- 4 days later
· 4 days later
Published
- 9 years later
· 9 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
- EPSS (exploitation in 30 days)
- 3.2% · top 12% of all CVEs (9 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.8.
Affected products
n/a
- affected n/a
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- PyPIrequestsGHSA-pg2w-x9wp-vw92 (opens in a new tab)
References
8
- [oss-security] 20150314 Re: CVE Request for python-requests session fixation vulnerability (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- FEDORA-2015-4084 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- MDVSA-2015:133 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
- [oss-security] 20150314 CVE Request for python-requests session fixation vulnerability (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- USN-2531-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- https://github.com/kennethreitz/requests/commit/3bd8afbff29e50b38f889b2f688785a669b9aafc (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://advisories.mageia.org/MGASA-2015-0120.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://warehouse.python.org/project/requests/2.6.0/ (opens in a new tab)x_refsource_CONFIRMx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2015-0032 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-pg2w-x9wp-vw92 (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2015-2296)Record last updated .