CVE Explorer
CVE-2026-41487
Langfuse is an open source large language model engineering platform. From version 3.68.0 to before version 3.167.0, there is a role-based-access control flaw in the LLM connection update flow. An authenticated, low-privileged user of role “member” in a project could request the update of an existing LLM connection to an attacker-controlled baseUrl, causing Langfuse to reuse the stored provider secret and redirect the test request to an attacker-controlled endpoint. This could expose the plaint
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"product":"langfuse","vendor":"langfuse","versions":[{"status":"affected","version":">= 3.68.0, < 3.167.0"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:6433985848c2e65d6de3bd6b4c4295e05fc04869f47ffffe9d4ca0d3d0a24aa9 · sha256:0b9ea264f0a49ae6… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":5.3,"baseSeverity":"MEDIUM","privilegesRequired":"LOW","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"LOW"},"metric_type":"cvssV4_0"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:6433985848c2e65d6de3bd6b4c4295e05fc04869f47ffffe9d4ca0d3d0a24aa9 · sha256:0b9ea264f0a49ae6… · /containers/cna/metrics/0/cvssV4_0
CWE assertions
1 source assertion{"cweId":"CWE-284","description":"CWE-284: Improper Access Control","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:6433985848c2e65d6de3bd6b4c4295e05fc04869f47ffffe9d4ca0d3d0a24aa9 · sha256:0b9ea264f0a49ae6… · /containers/cna/problemTypes/0/descriptions/0
Source references
6 source assertions{"name":"https://github.com/langfuse/langfuse/commit/7527bb0d84bc0a3dc24a4b16d22ed2e46e6dddff","tags":["x_refsource_MISC"],"url":"https://github.com/langfuse/langfuse/commit/7527bb0d84bc0a3dc24a4b16d22ed2e46e6dddff"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:6433985848c2e65d6de3bd6b4c4295e05fc04869f47ffffe9d4ca0d3d0a24aa9 · sha256:0b9ea264f0a49ae6… · /containers/cna/references/3
{"name":"https://github.com/langfuse/langfuse/commit/e12386f9d4368bbfff24a4ad7fd53641091605ff","tags":["x_refsource_MISC"],"url":"https://github.com/langfuse/langfuse/commit/e12386f9d4368bbfff24a4ad7fd53641091605ff"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:6433985848c2e65d6de3bd6b4c4295e05fc04869f47ffffe9d4ca0d3d0a24aa9 · sha256:0b9ea264f0a49ae6… · /containers/cna/references/4
{"name":"https://github.com/langfuse/langfuse/pull/13027","tags":["x_refsource_MISC"],"url":"https://github.com/langfuse/langfuse/pull/13027"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:6433985848c2e65d6de3bd6b4c4295e05fc04869f47ffffe9d4ca0d3d0a24aa9 · sha256:0b9ea264f0a49ae6… · /containers/cna/references/1
{"name":"https://github.com/langfuse/langfuse/pull/13055","tags":["x_refsource_MISC"],"url":"https://github.com/langfuse/langfuse/pull/13055"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:6433985848c2e65d6de3bd6b4c4295e05fc04869f47ffffe9d4ca0d3d0a24aa9 · sha256:0b9ea264f0a49ae6… · /containers/cna/references/2
{"name":"https://github.com/langfuse/langfuse/releases/tag/v3.167.0","tags":["x_refsource_MISC"],"url":"https://github.com/langfuse/langfuse/releases/tag/v3.167.0"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:6433985848c2e65d6de3bd6b4c4295e05fc04869f47ffffe9d4ca0d3d0a24aa9 · sha256:0b9ea264f0a49ae6… · /containers/cna/references/5
{"name":"https://github.com/langfuse/langfuse/security/advisories/GHSA-2524-j966-gfgh","tags":["x_refsource_CONFIRM"],"url":"https://github.com/langfuse/langfuse/security/advisories/GHSA-2524-j966-gfgh"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:6433985848c2e65d6de3bd6b4c4295e05fc04869f47ffffe9d4ca0d3d0a24aa9 · sha256:0b9ea264f0a49ae6… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.