CVE-2026-22688 json
WeKnora has Command Injection in MCP stdio test
published 2026-01-09 9 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-1695 , GHSA-78h3-63c4-5fqc , GO-2026-4292
- cvss
- 10.0
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.9%
- EPSS 1.9% chance of exploitation in 30 days, percentile 80%
- public exploits
- 0
- none known
Summary
WeKnora is an LLM-powered framework designed for deep document understanding and semantic retrieval. Prior to version 0.2.5, there is a command injection vulnerability that allows authenticated users to inject stdio_config.command/args into MCP stdio settings, causing the server to execute subprocesses using these injected values. This issue has been patched in version 0.2.5.
Patch / fix
- go github.com/Tencent/WeKnora 0.2.5
- tencent weknora 0.2.5
- govulncheck-vulndb openSUSE Leap 15.6 0.0.20260114T191543-150000.1.137.1
suse advisories SUSE-SU-2026:0142-1
- govulncheck-vulndb openSUSE Leap 16.0 0.0.20260723T184607-160000.1.1
opensuse advisories openSUSE-SU-2026:21483-1
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- total
- Assessed
- 9 mo ago
Exploit prediction
1.94% chance of exploitation in the next 30 days, higher than 80% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/Tencent/WeKnora/security/advisories/GHSA-78h3-63c4-5fqc referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 10.0 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
| GitHub | 3.1 | 9.9 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | github.com/Tencent/WeKnora | <0.2.5 |
0.2.5 |
Affected products
- Tencent WeKnora
Classification
- Weakness
-
- CWE-77 Improper Neutralization of Special Elements used in a Command
References
-
github.com
/Tencent/WeKnora/commit/f7900a5e9a18c99d25cec9589ead9e4e59ce04bb
web, patch
-
github.com
/Tencent/WeKnora/security/advisories/GHSA-78h3-63c4-5fqc
exploit, web, vendor-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-22688
advisory
-
github.com
/Tencent/WeKnora
package
-
pkg.go.dev
/vuln/GO-2026-4292
web
Sources
- CVE List CVE-2026-22688
- GitHub Advisory GHSA-78h3-63c4-5fqc
- NVD CVE-2026-22688
- OSV GO-2026-4292
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.