CVE-2026-28465: OpenClaw voice-call · Authentication Bypass by Spoofing
Affects OpenClaw voice-callSource CVE Database V5
Not known to be exploited · CVSS 8.2 High : upgrade to 2026.2.3 soon.
Data as of 30 Oct 2026, 11:52 UTC
- EPSS
- 0.3% chance of exploitation in 30 days – higher than 33% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 2026.2.3
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 5 Mar 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.
What to do
Upgrade OpenClaw voice-call to 2026.2.3.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| OpenClawvoice-call | Affected
| Fixed in
|
AI-suggested
To mitigate CVE-2026-28465, organizations should immediately upgrade OpenClaw voice-call plugins to version 2026.2.3 or later once available. In the interim, administrators should implement strict validation of Forwarded and X-Forwarded-* headers at the reverse proxy level, ensuring that only trusted proxies can set or forward these headers. This can be achieved by configuring proxies to remove or overwrite untrusted headers and by restricting access to webhook endpoints to known IP addresses or networks. Additionally, implementing mutual TLS authentication between proxies and backend services can reduce header spoofing risks. Monitoring webhook traffic for anomalies and enabling detailed logging can help detect potential exploitation attempts. Finally, reviewing and hardening webhook authentication mechanisms to avoid reliance on client-supplied headers for trust decisions is critical for long-term security.
Description
OpenClaw's voice-call plugin versions before 2026.2.3 contain an improper authentication vulnerability in webhook verification that allows remote attackers to bypass verification by supplying untrusted forwarded headers. Attackers can spoof webhook events by manipulating Forwarded or X-Forwarded-* headers in reverse-proxy configurations that implicitly trust these headers.
References
- github.com/openclaw/openclaw/security/advisories/GHSA-3m3q-x3gj-f79x (opens in a new tab)
- github.com/openclaw/openclaw/commit/a749db9820eb6d6224032a5a34223d286d2dcc2f (opens in a new tab)
- vulncheck.com/advisories/openclaw-voice-call-webhook-verification-bypass-via-forwarded-headers (opens in a new tab)