CVE-2026-86539
published 2026-09-07CVE-2026-86539: knowns through 0.33.0 contains a server-side request forgery vulnerability in the POST /api/embedding-models/test endpoint that issues outbound requests to…
PriorityP342high7.2CVSS 3.1
AVNACLPRNUINSCCLILAN
EPSS
0.35%
26.4th percentile
knowns through 0.33.0 contains a server-side request forgery vulnerability in the POST /api/embedding-models/test endpoint that issues outbound requests to caller-supplied destinations without validation. Attackers can enumerate internal hosts and cloud metadata endpoints by observing transport error messages that reveal network reachability information.
Affected
1 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| knowns-dev | knowns | <= 0.33.0 | — |
CVSS provenance
nvdv3.17.2HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
nvdv4.06.9MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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VulDB
knowns-dev Knowns up to 0.33.0 test server-side request forgery
vuldb·2026-09-08·CVSS 7.2
CVE-2026-86539 [HIGH] knowns-dev Knowns up to 0.33.0 test server-side request forgery
A vulnerability was found in knowns-dev Knowns up to 0.33.0. It has been rated as critical. This affects an unknown function of the file /api/embedding-models/test. Performing a manipulation results in server-side request forgery.
This vulnerability was named CVE-2026-86539. The attack may be initiated remotely. There is no available exploit.
GHSA
knowns through 0.33.0 contains a server-side request forgery vulnerability in the POST /api/embedding-models/test endpoint that issues outbound requests to caller-supplied destinations without validat
ghsa_unreviewed·2026-09-08
CVE-2026-86539 [MEDIUM] CWE-918 knowns through 0.33.0 contains a server-side request forgery vulnerability in the POST /api/embedding-models/test endpoint that issues outbound requests to caller-supplied destinations without validat
knowns through 0.33.0 contains a server-side request forgery vulnerability in the POST /api/embedding-models/test endpoint that issues outbound requests to caller-supplied destinations without validation. Attackers can enumerate internal hosts and cloud metadata endpoints by observing transport error messages that reveal network reachability information.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://github.com/knowns-dev/knowns/blob/v0.33.0/internal/server/routes/embedding_models.go#L64-L110https://github.com/knowns-dev/knowns/blob/v0.33.0/internal/server/routes/imports.go#L317-L330https://github.com/knowns-dev/knowns/security/advisories/GHSA-qx9v-m9gg-p5jghttps://www.vulncheck.com/advisories/knowns-through-0.33.0-server-side-request-forgery-via-embedding-models-endpoint
2026-09-07
Published