CVE-2026-58209

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

0.34% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 27.4% of scored records. A rank, not a probability.

NVD base score

4.3 (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:L/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 20:12Z3 MO AGO

Last updated

2026-07-09 13:31Z3 MO AGO

Reserved

2026-06-29

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

Medium (CVSS 4.3)

CNA CVSS vector

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

Weaknesses

• CWE-863Incorrect AuthorizationClass
• CWE-346Origin Validation ErrorClass

Data version

5.2

Document digest

f7c40974e5dbbeacc6a6af8bd6f04dc2a9be6b7261a4b03c011a3cb2475d35cd

• github.comhttps://github.com/nats-io/nats-server/security/advisories/GHSA-7qmq-8cc4-hxwgx_refsource_CONFIRM
• github.comhttps://github.com/nats-io/nats-server/commit/181b1f51f40b9954c57e9d478e051fb257679356x_refsource_MISC
• github.comhttps://github.com/nats-io/nats-server/commit/1c429b6fdc5afd4188cc5faf1127f6334896cd87x_refsource_MISC
• github.comhttps://github.com/nats-io/nats-server/releases/tag/v2.12.12x_refsource_MISC
• github.comhttps://github.com/nats-io/nats-server/releases/tag/v2.14.3x_refsource_MISC