HOMEVULNERABILITIESCVE-2026-35661
MEDIUMPOC

CVE-2026-35661

CWE-288Published: April 10, 2026· Updated: Apr 13, 2026

5.3
CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2026-35661 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A proof-of-concept (PoC) exploit exists for CVE-2026-35661. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityLow
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Affected Vendors & Products

openclaw1 product
openclaw
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

POC AVAILABLEProof-of-concept code exists
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://github.com/openclaw/openclaw/commit/269282ac69ab6030d5f30d04822668f607f13065
ADVISORYhttps://github.com/openclaw/openclaw/security/advisories/GHSA-j4c9-w69r-cw33
ADVISORYhttps://www.vulncheck.com/advisories/openclaw-telegram-dm-scoped-inline-button-callback-authorization-bypass

All References (3)

→
https://github.com/openclaw/openclaw/commit/269282ac69ab6030d5f30d04822668f607f13065Patch
→
https://github.com/openclaw/openclaw/security/advisories/GHSA-j4c9-w69r-cw33Vendor Advisory
→
https://www.vulncheck.com/advisories/openclaw-telegram-dm-scoped-inline-button-callback-authorization-bypassThird Party Advisory

Quick Facts

CVE IDCVE-2026-35661
CVSS Score5.3 / 10
SeverityMEDIUM
WeaknessCWE-288
CISA KEVNo
ExploitPOC
Affected1 vendor
PublishedApr 10, 2026

Related CVEs (CWE-288)

CVE-2026-53622
10.0
CVE-2026-48020
10.0
CVE-2026-48491
10.0
CVE-2026-20079
10.0
CVE-2026-10523
9.9
CVE-2026-7458
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-35661 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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