CVE-2025-9799A security flaw has been discovered in Langfuse up to 3.88.0.
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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A security flaw has been discovered in Langfuse up to 3.88.0. Affected by this vulnerability is the function promptChangeEventSourcing of the file web/src/features/prompts/server/routers/promptRouter.ts of the component Webhook Handler. Performing manipulation results in server-side request forgery. The attack may be initiated remotely. A high degree of complexity is needed for the attack. The exploitation appears to be difficult. The exploit has been released to the public and may be exploited.
- CVSS
- 5.0 MEDIUM (v3.1, NVD)CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
- Weakness (CWE)
- CWE-918
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Oct 19, 2026
- First seen by InfoSec Signals
- Oct 19, 2026
Affected products
langfuse langfuse langfuse:langfuse | through 3.88.0 | NVD |
References
- https://github.com/langfuse/langfuse/issues/8522exploit, issue-tracking
- https://github.com/langfuse/langfuse/issues/8522#issue-3320549867exploit, issue-tracking
- https://vuldb.com/?ctiid.322114permissions-required, vdb-entry
- https://vuldb.com/?id.322114third-party-advisory, vdb-entry
- https://vuldb.com/?submit.641128third-party-advisory, vdb-entry
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.