CVE-2026-63376

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• 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

0.68% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 52.0% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Deferred. NVD last modified this record on 2026-09-09.

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

2026-09-03 20:34Z1 MO AGO

Last updated

2026-09-05 02:16Z1 MO AGO

Reserved

2026-07-16

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

High (CVSS 8.2)

CNA CVSS vector

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

Weaknesses

• CWE-1321Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')Variant
• CWE-915Improperly Controlled Modification of Dynamically-Determined Object AttributesBase

Data version

5.2

Document digest

2494c74814be4f2ff77b349b5ad4cb17ab9d48bdfdc4b11e0e7715ecd1e22f50

• github.comhttps://github.com/BinaryMuse/toml-node/security/advisories/GHSA-v5mp-jgw5-2x6jx_refsource_CONFIRM
• github.comhttps://github.com/BinaryMuse/toml-node/commit/def6ab5ea99038c0dd482cd6af1745a6af8b4c44x_refsource_MISC
• github.comhttps://github.com/BinaryMuse/toml-node/commit/dfaff662276adc38a2e03df3139f7119b0185463x_refsource_MISC