CVE-2026-118376
WeKnora before 0.8.2 SSRF Guard Bypass via NAT64 IPv6 Addresses
Tencent WeKnora
CVSS
6.0MediumExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)No scoreNo FIRST EPSS score in this snapshot yet
What fixes it
- 0.8.2WeKnoraCVE List
A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.
Description
WeKnora before 0.8.2 contains a server-side request forgery vulnerability in isRestrictedIP() that misclassifies NAT64-prefixed IPv6 addresses as public. Authenticated attackers can supply URLs resolving to NAT64 encodings of internal addresses via web_fetch or URL-based knowledge import to reach internal services or cloud metadata endpoints.
Text from CVE List
Affected versions 1
- WeKnoraaffected: 0.2.11 before 0.8.2CVE List
References 7
- github.com/Tencent/WeKnora/commit/ff818b681f10bc29edbc48fe35f00009dc276bfaFixvia CVE List
- github.com/Tencent/WeKnora/commit/d7ccd5ba517cc3968e6d5000a2ab0f4b51ef1ddaFixvia CVE List
- github.com/Tencent/WeKnora/releases/tag/v0.8.2Fixvia CVE List
- github.com/Tencent/WeKnora/blob/3d5d8bfcdfeeea266b292b71cea616847af28d0f/internal/utils/security.go#L267-L327Advisoryvia CVE List
- vulncheck.com/advisories/weknora-before-0.8.2-ssrf-guard-bypass-via-nat64-ipv6-addressesAdvisoryvia CVE List
- github.com/Tencent/WeKnora/issues/4092Referencevia CVE List
- github.com/Tencent/WeKnoraReferencevia CVE List