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CVE-2026-56676

9Router is an AI router & token saver. Prior to 0.5.2, 9router validates image URLs by resolving the host before fetching, but open-sse/translator/concerns/image.js performs the later server-side image fetch with a separate DNS resolution. An authenticated attacker with access to the LLM proxy can use a vision-capable model and an attacker-controlled DNS name that first resolves to a public IP and then rebinds to an internal address, allowing server-side requests to internal-only HTTP services.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:ac3e0ae5f609fddb71b1dd15521631bb7a6110488d341d95d3691439ad5e6e2c
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-367","description":"CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:62a6cfb1b95e8a3e3105a6d4a9d541d0026555a900e9d527be37277c39756ef3 · sha256:7e772a814419da05… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-918","description":"CWE-918: Server-Side Request Forgery (SSRF)","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:62a6cfb1b95e8a3e3105a6d4a9d541d0026555a900e9d527be37277c39756ef3 · sha256:7e772a814419da05… · /containers/cna/problemTypes/1/descriptions/0

Affected products and versions

1 source assertion
{"product":"9router","vendor":"decolua","versions":[{"status":"affected","version":"< 0.5.2"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:62a6cfb1b95e8a3e3105a6d4a9d541d0026555a900e9d527be37277c39756ef3 · sha256:7e772a814419da05… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":7.4,"baseSeverity":"HIGH","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:62a6cfb1b95e8a3e3105a6d4a9d541d0026555a900e9d527be37277c39756ef3 · sha256:7e772a814419da05… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-367","description":"CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:62a6cfb1b95e8a3e3105a6d4a9d541d0026555a900e9d527be37277c39756ef3 · sha256:7e772a814419da05… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-918","description":"CWE-918: Server-Side Request Forgery (SSRF)","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:62a6cfb1b95e8a3e3105a6d4a9d541d0026555a900e9d527be37277c39756ef3 · sha256:7e772a814419da05… · /containers/cna/problemTypes/1/descriptions/0

Source references

4 source assertions
{"name":"https://github.com/decolua/9router/commit/c7d07448c58bec1200741de0b73305b860416b82","tags":["x_refsource_MISC"],"url":"https://github.com/decolua/9router/commit/c7d07448c58bec1200741de0b73305b860416b82"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:62a6cfb1b95e8a3e3105a6d4a9d541d0026555a900e9d527be37277c39756ef3 · sha256:7e772a814419da05… · /containers/cna/references/1
{"name":"https://github.com/decolua/9router/releases/tag/v0.5.2","tags":["x_refsource_MISC"],"url":"https://github.com/decolua/9router/releases/tag/v0.5.2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:62a6cfb1b95e8a3e3105a6d4a9d541d0026555a900e9d527be37277c39756ef3 · sha256:7e772a814419da05… · /containers/cna/references/2
{"tags":["exploit"],"url":"https://github.com/decolua/9router/security/advisories/GHSA-cmhj-wh2f-9cgx"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:62a6cfb1b95e8a3e3105a6d4a9d541d0026555a900e9d527be37277c39756ef3 · sha256:7e772a814419da05… · /containers/adp/0/references/0
{"name":"https://github.com/decolua/9router/security/advisories/GHSA-cmhj-wh2f-9cgx","tags":["x_refsource_CONFIRM"],"url":"https://github.com/decolua/9router/security/advisories/GHSA-cmhj-wh2f-9cgx"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:62a6cfb1b95e8a3e3105a6d4a9d541d0026555a900e9d527be37277c39756ef3 · sha256:7e772a814419da05… · /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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