CVE-2026-28480: OpenClaw < 2026.2.14 - Identity Spoofing via Mutable Username in Telegram Allowlist Authorization

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-03-05 · updated 2026-06-17
Weakness: CWE-290

Description

OpenClaw versions prior to 2026.2.14 contain an authorization bypass vulnerability where Telegram allowlist matching accepts mutable usernames instead of immutable numeric sender IDs. Attackers can spoof identity by obtaining recycled usernames to bypass allowlist restrictions and interact with bots as unauthorized senders.

Affected products

OpenClaw: before 2026.2.14 — fixed in 2026.2.14

How to fix

Upgrade to a fixed version: OpenClaw 2026.2.14. Check the vendor advisory for mitigations.

References

https://github.com/openclaw/openclaw/commit/9e147f00b48e63e7be6964e0e2a97f2980854128
https://github.com/openclaw/openclaw/commit/e3b432e481a96b8fd41b91273818e514074e05c3
https://github.com/openclaw/openclaw/security/advisories/GHSA-mj5r-hh7j-4gxf
https://www.vulncheck.com/advisories/openclaw-identity-spoofing-via-mutable-username-in-telegram-allowlist-authorization

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