CVE-2026-64846

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

0.10% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 1.0% of scored records. A rank, not a probability.

NVD base score

2.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:N

NVD analysis status

Awaiting Analysis. NVD last modified this record on 2026-10-18.

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

2026-08-20 16:18Z2 MO AGO

Last updated

2026-08-20 19:32Z2 MO AGO

Reserved

2026-07-20

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

Low (CVSS 2.8)

CNA CVSS vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:N

Weaknesses

• CWE-61UNIX Symbolic Link (Symlink) FollowingCompound
• CWE-367Time-of-check Time-of-use (TOCTOU) Race ConditionBase

Data version

5.2

Document digest

94199bb0b009c1bc336707408c74e740bdc9f64c4f0e493468696e46550500bc

• github.comhttps://github.com/NixOS/nix/security/advisories/GHSA-6h4g-g5j9-fm5fx_refsource_CONFIRM
• github.comhttps://github.com/NixOS/nix/pull/15401x_refsource_MISC
• github.comhttps://github.com/NixOS/nix/commit/26679828f74ee6e82a4100904e6361f993ff5390x_refsource_MISC