CVE-2026-59870

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

0.74% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 54.2% of scored records. A rank, not a probability.

NVD base score

7.5 (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:N/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-10-25.

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

2026-07-08 15:13Z3 MO AGO

Last updated

2026-10-06 15:07Z23 DAYS AGO

Reserved

2026-07-07

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

High (CVSS 7.5)

CNA CVSS vector

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

Weaknesses

• CWE-407Inefficient Algorithmic ComplexityClass
• CWE-770Allocation of Resources Without Limits or ThrottlingBase

Data version

5.2

Document digest

0aa453f0d07ff279cf89db5e94c18cd5b7fe897cb8a6733f5f13bede677f0de5

• github.comhttps://github.com/nodeca/js-yaml/security/advisories/GHSA-724g-mxrg-4qvmx_refsource_CONFIRM
• github.comhttps://github.com/nodeca/js-yaml/commit/22a8071ef032117bc6249c330b240ac3aa2d3dedx_refsource_MISC
• github.comhttps://github.com/nodeca/js-yaml/commit/39f3211a2f01b3c6982710cf21434ab7060acefex_refsource_MISC
• github.comhttps://github.com/nodeca/js-yaml/commit/c3cc4b0bb9ddb9af2dd9b61e0d56f5ce7983cd4ax_refsource_MISC
• github.comhttps://github.com/nodeca/js-yaml/releases/tag/3.15.1x_refsource_MISC
• github.comhttps://github.com/nodeca/js-yaml/releases/tag/4.3.1x_refsource_MISC
• github.comhttps://github.com/nodeca/js-yaml/releases/tag/5.2.1x_refsource_MISC