PT-2026-23550 · Openclaw · Openclaw

Abeyron · Published 2026-02-13 · Updated 2026-03-07 · CVE-2026-28475

Positive Technologies (AI Summary)

CVSS v3.1

4.8

Medium

Base vector

AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions OpenClaw versions prior to 2026.2.13

Description The software uses non-constant-time string comparison for hook token validation, potentially allowing attackers to infer tokens through timing measurements. Remote attackers with network access to the hooks endpoint can exploit timing side-channels across multiple requests to gradually recover the authentication token. Real-world latency and jitter can make reliable measurement difficult. The issue requires the hooks to be exposed to an untrusted network and a large number of requests.

Recommendations Upgrade to OpenClaw version 2026.2.13 or later. If an immediate upgrade is not possible, restrict network access to the hooks endpoint and rotate the hooks token after updating.

Fix

Weakness Enumeration

CWE-208

Related Identifiers

BDU:2026-06167

CVE-2026-28475

GHSA-47Q7-97XP-M272

Affected Products

Openclaw

References · 11

• https://github.com/openclaw/openclaw/security/advisories/GHSA-47q7-97xp-m272 · Vendor Advisory
• https://github.com/openclaw/openclaw/commit/113ebfd6a23c4beb8a575d48f7482593254506ec · Patch
• https://bdu.fstec.ru/vul/2026-06167 · Security Note
• https://osv.dev/vulnerability/GHSA-47q7-97xp-m272 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2026-28475 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-28475 · Security Note
• https://github.com/openclaw/openclaw · Note
• https://twitter.com/CveFindCom/status/2029689289949237293 · Twitter Post
• https://t.me/CVEtracker/46494 · Telegram Post
• https://twitter.com/CVEnew/status/2030385172693094910 · Twitter Post
• https://vulncheck.com/advisories/openclaw-timing-attack-via-hook-token-comparison · Note