CVE-2026-58251

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

0.46% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 39.8% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

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

Red Hat severity

Moderate. 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 19:40Z3 MO AGO

Last updated

2026-07-09 13:40Z3 MO AGO

Reserved

2026-06-29

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

Medium (CVSS 6.5)

CNA CVSS vector

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

Weaknesses

• CWE-285Improper AuthorizationClass
• CWE-551Incorrect Behavior Order: Authorization Before Parsing and CanonicalizationBase

Data version

5.2

Document digest

f3901f6d842e0453bee770424fd367ed30baa8343864bca462423158272935ec

• github.comhttps://github.com/nats-io/nats-server/security/advisories/GHSA-jx8g-9g95-6322x_refsource_CONFIRM
• github.comhttps://github.com/nats-io/nats-server/commit/013586288078def45a6788096924eb4d150db65cx_refsource_MISC
• github.comhttps://github.com/nats-io/nats-server/commit/79c2f6e9ff87f594596337b6427dda85c38d1fe1x_refsource_MISC
• github.comhttps://github.com/nats-io/nats-server/commit/b9ffb63b85e7db3d25a13b2e234f5f7f7c13164dx_refsource_MISC
• github.comhttps://github.com/nats-io/nats-server/releases/tag/v2.11.16x_refsource_MISC
• github.comhttps://github.com/nats-io/nats-server/releases/tag/v2.12.7x_refsource_MISC
• github.comhttps://github.com/nats-io/nats-server/releases/tag/v2.14.0x_refsource_MISC