CVE-2026-54738

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

0.43% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 35.4% 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

Received. NVD last modified this record on 2026-08-21.

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

2026-08-19 20:27Z16 DAYS AGO

Last updated

2026-08-21 21:48Z14 DAYS AGO

Reserved

2026-06-15

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-799Improper Control of Interaction FrequencyClass

Data version

5.2

Document digest

34a944b6471ec8403724f4717a60d61051ea77dae0bdc5b73e723f7d0535abaf

• github.comhttps://github.com/LemmyNet/lemmy/security/advisories/GHSA-2hrg-7x4g-9vpgx_refsource_CONFIRM
• github.comhttps://github.com/LemmyNet/lemmy/pull/6574x_refsource_MISC
• github.comhttps://github.com/LemmyNet/lemmy/pull/6575x_refsource_MISC
• github.comhttps://github.com/LemmyNet/lemmy/commit/41513c89ceecee719bff05acfe613e3b1e85f23cx_refsource_MISC
• github.comhttps://github.com/LemmyNet/lemmy/commit/8b5b2aa78417b53ff3622c01f5bed2f1590f3b82x_refsource_MISC
• github.comhttps://github.com/LemmyNet/lemmy/releases/tag/0.19.19x_refsource_MISC
• github.comhttps://github.com/LemmyNet/lemmy/releases/tag/1.0.0-beta.1x_refsource_MISC
• join-lemmy.orghttps://join-lemmy.org/news/2026-06-09_-_Lemmy_Release_v0.19.19x_refsource_MISC