CVE-2026-77281

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

0.49% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 41.9% 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:L/I:N/A:L

NVD analysis status

Awaiting Analysis. NVD last modified this record on 2026-09-24.

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

2026-09-17 21:04Z1 MO AGO

Last updated

2026-09-18 14:43Z1 MO AGO

Reserved

2026-08-20

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:L/I:N/A:L

Weaknesses

• CWE-94Improper Control of Generation of Code ('Code Injection')Base
• CWE-178Improper Handling of Case SensitivityBase
• CWE-770Allocation of Resources Without Limits or ThrottlingBase

Data version

5.2

Document digest

32ba0c364ea50b938ecea2a2360bf7a6be22bb8920d0765a211351746a8ca0e7

• github.comhttps://github.com/caddyserver/caddy/security/advisories/GHSA-j8px-rmrx-76h9x_refsource_CONFIRM
• github.comhttps://github.com/caddyserver/caddy/pull/7761x_refsource_MISC
• github.comhttps://github.com/caddyserver/caddy/commit/176b043b0104cee3f894023cd5a598ac29e404bbx_refsource_MISC
• github.comhttps://github.com/caddyserver/caddy/releases/tag/v2.11.4x_refsource_MISC