CVE-2026-11940

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.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• 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

0.75% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 52.3% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/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 2026-08-13.

Red Hat severity

Important. 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

2026-06-23 16:04Z2 MO AGO

Last updated

2026-08-13 00:28Z22 DAYS AGO

Reserved

2026-06-10

Assigning CNA

PSF

Record state

PUBLISHED

Severity

High (CVSS 7.8)

CNA CVSS vector

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

Weaknesses

• CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')Base
• CWE-59Improper Link Resolution Before File Access ('Link Following')Base

Data version

5.2

Document digest

f9a158ff3606686f0544cbe1050e68302590e601e3c95a9d66043dab35986ad2

• github.comhttps://github.com/python/cpython/pull/151559patch
• mail.python.orghttps://mail.python.org/archives/list/security-announce@python.org/thread/LD6QIISNQFQYOIEPJNEUIPV7S3V76FZH/vendor-advisory
• github.comhttps://github.com/python/cpython/issues/151558issue-tracking
• github.comhttps://github.com/python/cpython/commit/27dd970bf6b17ebca7c8ed486a40ab043ed7af8fpatch
• github.comhttps://github.com/python/cpython/commit/672825e2f36a57e173959b0d9d409d4560dab8dfpatch
• github.comhttps://github.com/python/cpython/commit/771d12dda5140313db0ac550292987975651bbdepatch
• github.comhttps://github.com/python/cpython/commit/79c06bd5c6afa3c440d50faf7ee1b147c8832b4cpatch
• github.comhttps://github.com/python/cpython/commit/be13e86f6b9788a6f4d0419dffef72cbae5865c9patch
• github.comhttps://github.com/python/cpython/commit/e5fdbd8d5aa923bd9111b112ea73bd6ec7c47877patch
• github.comhttps://github.com/python/cpython/commit/0f852b3f07dd8e71e40326a51c02afbf16a42cc5patch