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Description

OpenClaw before 2026.3.25 contains an authorization bypass vulnerability in Telegram callback query handling that allows attackers to mutate session state without satisfying normal DM pairing requirements. Remote attackers can exploit weaker callback-only authorization in direct messages to bypass DM pairing and modify session state.

PUBLISHED Reserved 2026-04-04 | Published 2026-04-10 | Updated 2026-04-10 | Assigner VulnCheck




MEDIUM: 6.9CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

MEDIUM: 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Problem types

CWE-288: Authentication Bypass Using an Alternate Path or Channel

Product status

Default status
unaffected

Any version before 2026.3.25
affected

2026.3.25 (semver)
unaffected

Credits

Peng Zhou (@zpbrent) reporter

References

github.com/...enclaw/security/advisories/GHSA-j4c9-w69r-cw33 (GitHub Security Advisory (GHSA-j4c9-w69r-cw33)) third-party-advisory

github.com/...ommit/269282ac69ab6030d5f30d04822668f607f13065 (Patch Commit) patch

www.vulncheck.com/...ne-button-callback-authorization-bypass (VulnCheck Advisory: OpenClaw < 2026.3.25 - Telegram DM-Scoped Inline Button Callback Authorization Bypass) third-party-advisory

cve.org (CVE-2026-35661)

nvd.nist.gov (CVE-2026-35661)

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