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CVE-2026-61740

LightRAG provides simple and fast retrieval-augmented generation. Prior to 1.5.4, when LightRAG is deployed with LIGHTRAG_API_KEY set but AUTH_ACCOUNTS unset, X-API-Key protection can be bypassed because lightrag/api/auth.py falls back to a hardcoded DEFAULT_TOKEN_SECRET, /auth-status and /login can mint guest JWTs, and combined_dependency in lightrag/api/utils_api.py accepts a valid guest token before checking the API key. A remote unauthenticated attacker can call endpoints guarded by combined
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:2fe97c7bd79b954befb037110617258db5139a4a20b6d0ad7b8472d9c3c3957e
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-798","description":"CWE-798: Use of Hard-coded Credentials","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:927bc706ab0cbede4fdeb4ff98326f2c9600dec377550a0d30b5e518819fe2ea · sha256:d174e5a42752d660… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-287","description":"CWE-287: Improper Authentication","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:927bc706ab0cbede4fdeb4ff98326f2c9600dec377550a0d30b5e518819fe2ea · sha256:d174e5a42752d660… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"product":"LightRAG","vendor":"HKUDS","versions":[{"status":"affected","version":"< 1.5.4"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:927bc706ab0cbede4fdeb4ff98326f2c9600dec377550a0d30b5e518819fe2ea · sha256:d174e5a42752d660… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":9.3,"baseSeverity":"CRITICAL","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"LOW","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:927bc706ab0cbede4fdeb4ff98326f2c9600dec377550a0d30b5e518819fe2ea · sha256:d174e5a42752d660… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

2 source assertions
{"cweId":"CWE-798","description":"CWE-798: Use of Hard-coded Credentials","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:927bc706ab0cbede4fdeb4ff98326f2c9600dec377550a0d30b5e518819fe2ea · sha256:d174e5a42752d660… · /containers/cna/problemTypes/1/descriptions/0
{"cweId":"CWE-287","description":"CWE-287: Improper Authentication","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:927bc706ab0cbede4fdeb4ff98326f2c9600dec377550a0d30b5e518819fe2ea · sha256:d174e5a42752d660… · /containers/cna/problemTypes/0/descriptions/0

Source references

5 source assertions
{"name":"https://github.com/HKUDS/LightRAG/commit/f7819aa3a49a9d8d92eed8251d82d6ebcafa8cba","tags":["x_refsource_MISC"],"url":"https://github.com/HKUDS/LightRAG/commit/f7819aa3a49a9d8d92eed8251d82d6ebcafa8cba"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:927bc706ab0cbede4fdeb4ff98326f2c9600dec377550a0d30b5e518819fe2ea · sha256:d174e5a42752d660… · /containers/cna/references/2
{"name":"https://github.com/HKUDS/LightRAG/pull/3319","tags":["x_refsource_MISC"],"url":"https://github.com/HKUDS/LightRAG/pull/3319"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:927bc706ab0cbede4fdeb4ff98326f2c9600dec377550a0d30b5e518819fe2ea · sha256:d174e5a42752d660… · /containers/cna/references/1
{"name":"https://github.com/HKUDS/LightRAG/releases/tag/v1.5.4","tags":["x_refsource_MISC"],"url":"https://github.com/HKUDS/LightRAG/releases/tag/v1.5.4"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:927bc706ab0cbede4fdeb4ff98326f2c9600dec377550a0d30b5e518819fe2ea · sha256:d174e5a42752d660… · /containers/cna/references/3
{"tags":["exploit"],"url":"https://github.com/HKUDS/LightRAG/security/advisories/GHSA-f4vv-55c2-5789"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:927bc706ab0cbede4fdeb4ff98326f2c9600dec377550a0d30b5e518819fe2ea · sha256:d174e5a42752d660… · /containers/adp/0/references/0
{"name":"https://github.com/HKUDS/LightRAG/security/advisories/GHSA-f4vv-55c2-5789","tags":["x_refsource_CONFIRM"],"url":"https://github.com/HKUDS/LightRAG/security/advisories/GHSA-f4vv-55c2-5789"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:927bc706ab0cbede4fdeb4ff98326f2c9600dec377550a0d30b5e518819fe2ea · sha256:d174e5a42752d660… · /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.

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