CVE-2026-3479

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.24% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 15.0% of scored records. A rank, not a probability.

NVD base score

0.0 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

NVD analysis status

Awaiting Analysis. NVD last modified this record on 2026-06-17.

Red Hat severity

Low. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-03-18 18:13Z5 MO AGO

Last updated

2026-04-07 22:01Z4 MO AGO

Reserved

2026-03-03

Assigning CNA

PSF

Record state

PUBLISHED

Severity

None (CVSS 0.0)

CNA CVSS vector

CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N

Weaknesses

• CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')Base

Data version

5.2

Document digest

db12caa12ae3563daa9a6aaff87ec20070b5f5b00bf8fe4a073122b58176ddb8

• github.comhttps://github.com/python/cpython/pull/146122patch
• mail.python.orghttps://mail.python.org/archives/list/security-announce@python.org/thread/WYLLVQOOCKGK73JM7Z7ZSNOJC4N7BAWY/vendor-advisory
• github.comhttps://github.com/python/cpython/issues/146121issue-tracking
• github.comhttps://github.com/python/cpython/commit/bcdf231946b1da8bdfbab4c05539bb0cc964a1c7patch
• github.comhttps://github.com/python/cpython/commit/5af6ce3e7b643a30a02d22245c1e3f4a8bc0a1fepatch
• github.comhttps://github.com/python/cpython/commit/cf59bf76470f3d75ad47d80ffb8ce76b64b5e943patch
• github.comhttps://github.com/python/cpython/commit/d786d59a8f7196bb630100a869f28ad13436b59cpatch