CVE-2026-3087

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

0.55% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 45.8% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/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

Modified. NVD last modified this record on 2026-10-26.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

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

2026-04-27 20:46Z6 MO AGO

Last updated

2026-08-13 00:28Z2 MO AGO

Reserved

2026-02-23

Assigning CNA

PSF

Record state

PUBLISHED

Severity

Medium (CVSS 6.0)

CNA CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/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

9ba67b71ab4efb53208338114c58a84d519518265eb49dbbf12c616b81e7ba86

• github.comhttps://github.com/python/cpython/pull/146591patch
• github.comhttps://github.com/python/cpython/issues/146581issue-tracking
• mail.python.orghttps://mail.python.org/archives/list/security-announce@python.org/thread/X6FXE5C6KDKOVNX3EC3DWD5RUPFWOZA4/vendor-advisory
• github.comhttps://github.com/python/cpython/commit/ab5ef98af693bded74a738570e81ea70abef2840patch
• github.comhttps://github.com/python/cpython/commit/b01e594fbe754a960212f908d047294e880b52fdpatch
• github.comhttps://github.com/python/cpython/commit/fc829e88753858c8ac669594bf0093f44948c0f4patch
• github.comhttps://github.com/python/cpython/commit/65b255416ae217bf0e22085be3c1976cea18bd8cpatch
• github.comhttps://github.com/python/cpython/commit/8e13025747e1ca72e86d1f35637123f9c306f0cbpatch
• github.comhttps://github.com/python/cpython/commit/8ee6aff14054b37b53e47194a2fa313e98163c94patch
• github.comhttps://github.com/python/cpython/commit/ba0aca3bffce431fe2fbd53ca4cd6a717a2e2c19patch
• github.comhttps://github.com/python/cpython/commit/a6650a2cdf0c49fb8ce0c982903aa2aa274beefepatch
• github.comhttps://github.com/python/cpython/commit/7ef7dd0a74f47facd1fadcbc77f8fb03beb5eb4dpatch
• github.comhttps://github.com/python/cpython/commit/1071290169f85c09cf767c1099564a9426cdc7e8patch
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2026/04/28/9