CVE-2026-45543

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

0.27% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 19.0% of scored records. A rank, not a probability.

NVD base score

5.3 (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:N

NVD analysis status

Analyzed. NVD last modified this record on 2026-07-22.

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

2026-06-01 17:00Z3 MO AGO

Last updated

2026-06-01 19:33Z3 MO AGO

Reserved

2026-05-12

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

Medium (CVSS 5.3)

CNA CVSS vector

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

Weaknesses

• CWE-552Files or Directories Accessible to External PartiesBase

Data version

5.2

Document digest

82028a8eb70d27e8437870a2acf4f13e5c5540b79b379731ed77fe0a7f9dd155

• github.comhttps://github.com/nextcloud/security-advisories/security/advisories/GHSA-q4fw-6jf8-5vhhx_refsource_CONFIRM
• github.comhttps://github.com/nextcloud/forms/pull/3291x_refsource_MISC
• hackerone.comhttps://hackerone.com/reports/3617352x_refsource_MISC