CVE-2026-26319 json
OpenClaw has Missing Webhook Authentication in Telnyx Provider Allowing Unauthenticated Requests
published 2026-02-17 8 mo ago modified 2026-06-17 4 mo ago also GHSA-4hg8-92x6-h2f3 , EUVD-2026-8434
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 25%
- public exploits
- 0
- none known
Summary
OpenClaw is a personal AI assistant. Versions 2026.2.13 and below allow the optional @openclaw/voice-call plugin Telnyx webhook handler to accept unsigned inbound webhook requests when telnyx.publicKey is not configured, enabling unauthenticated callers to forge Telnyx events. Telnyx webhooks are expected to be authenticated via Ed25519 signature verification. In affected versions, TelnyxProvider.verifyWebhook() could effectively fail open when no Telnyx public key was configured, allowing arbitrary HTTP POST requests to the voice-call webhook endpoint to be treated as legitimate Telnyx events. This only impacts deployments where the Voice Call plugin is installed, enabled, and the webhook endpoint is reachable from the attacker (for example, publicly exposed via a tunnel/proxy). The issue has been fixed in version 2026.2.14.
Patch / fix
- npm openclaw 2026.2.14
- openclaw openclaw 2026.2.14
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 8 mo ago
Exploit prediction
0.32% chance of exploitation in the next 30 days, higher than 25% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
| GitHub | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | openclaw | <2026.2.14 |
2026.2.14 |
Affected products
- openclaw openclaw
Classification
- Weakness
-
- CWE-306 Missing Authentication for Critical Functionality
References
-
github.com
/openclaw/openclaw/commit/29b587e73cbdc941caec573facd16e87d52f007b
web, patch
-
github.com
/openclaw/openclaw/commit/f47584fec86d6d73f2d483043a2ad0e7e3c50411
web, patch
-
github.com
/openclaw/openclaw/security/advisories/GHSA-4hg8-92x6-h2f3
web, mitigation, vendor-advisory
-
github.com
/openclaw/openclaw/releases/tag/v2026.2.14
web, product, release-notes
-
nvd.nist.gov
/vuln/detail/CVE-2026-26319
advisory
-
github.com
/openclaw/openclaw
package
Sources
- CVE List CVE-2026-26319
- GitHub Advisory GHSA-4hg8-92x6-h2f3
- NVD CVE-2026-26319
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