CVE-2026-53961

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.
• 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

0.30% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 22.0% 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:N/UI:N/S:U/C:N/I:L/A:L

NVD analysis status

Analyzed. NVD last modified this record on 2026-07-14.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

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

2026-07-09 21:48Z1 MO AGO

Last updated

2026-07-10 13:44Z1 MO AGO

Reserved

2026-06-11

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

Medium (CVSS 6.5)

CNA CVSS vector

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

Weaknesses

• CWE-345Insufficient Verification of Data AuthenticityClass

Data version

5.2

Document digest

2876255e0435376e7bcca8f9cbcd8258344a6513c3eaabe3fd5b07d98a3a4b83

• github.comhttps://github.com/discourse/discourse/security/advisories/GHSA-8f9m-v436-wr3xx_refsource_CONFIRM
• github.comhttps://github.com/discourse/discourse/commit/3a3d315a85ef3c6aabfc7e7bb38702059784f06bx_refsource_MISC
• github.comhttps://github.com/discourse/discourse/commit/61f12e13aa1b760f81d5ff60f12e3a7e77434b94x_refsource_MISC
• github.comhttps://github.com/discourse/discourse/commit/958f0cd831d65a49ec75f05343ca2c167679f0eax_refsource_MISC
• github.comhttps://github.com/discourse/discourse/commit/aea35190791261bab258ebab05da279e78cdd0e6x_refsource_MISC
• github.comhttps://github.com/discourse/discourse/releases/tag/v2026.1.5x_refsource_MISC
• github.comhttps://github.com/discourse/discourse/releases/tag/v2026.4.2x_refsource_MISC
• github.comhttps://github.com/discourse/discourse/releases/tag/v2026.5.1x_refsource_MISC
• github.comhttps://github.com/discourse/discourse/releases/tag/v2026.6.0x_refsource_MISC