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CVE-2026-27488

OpenClaw hardened cron webhook delivery against SSRF

6.9 MediumFix available

OpenClaw is a personal AI assistant. In versions 2026.2.17 and below, Cron webhook delivery in src/gateway/server-cron.ts uses fetch() directly, so webhook targets can reach private/metadata/internal endpoints without SSRF policy checks. This issue was fixed in version 2026.2.19.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
None

Exploit likelihood

0.37%Up 0.3 points since Feb 21, 2026
90%50%10%1%

What each source reports

CVE List Score used6.9

OpenClaw hardened cron webhook delivery against SSRF

OpenClaw is a personal AI assistant. In versions 2026.2.17 and below, Cron webhook delivery in src/gateway/server-cron.ts uses fetch() directly, so webhook targets can reach private/metadata/internal endpoints without SSRF policy checks. This issue was fixed in version 2026.2.19.

Record
CVE-2026-27488
CVSS 4.0
6.9 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:L
Weakness
CWE-918
Updated
2026-11-02
EUVDEUVD-2026-77116.9

OpenClaw is a personal AI assistant. In versions 2026.2.17 and below, Cron webhook delivery in src/gateway/server-cron.ts uses fetch() directly, so webhook targets can reach private/metadata/internal endpoints without SSRF policy checks. This issue was fixed in version 2026.2.19.

Record
EUVD-2026-7711
CVSS 4.0
6.9 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:L
Updated
2026-11-02
GitHub AdvisoriesGHSA-w45g-5746-x9fp6.9

OpenClaw hardened cron webhook delivery against SSRF

Affected Packages / Versions

  • openclaw npm package versions <= 2026.2.17.

Vulnerability

Cron webhook delivery in src/gateway/server-cron.ts used fetch() directly, so webhook targets could reach private/metadata/internal endpoints without SSRF policy checks.

Fix Commit(s)

  • 99db4d13e
  • 35851cdaf

Thanks @Adam55A-code for reporting.

Record
GHSA-w45g-5746-x9fp
CVSS 4.0
6.9 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:L
Weakness
CWE-918
Updated
2026-11-02
NVD6.9

OpenClaw is a personal AI assistant. In versions 2026.2.17 and below, Cron webhook delivery in src/gateway/server-cron.ts uses fetch() directly, so webhook targets can reach private/metadata/internal endpoints without SSRF policy checks. This issue was fixed in version 2026.2.19.

Record
CVE-2026-27488
CVSS 4.0
6.9 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1
7.3 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Weakness
CWE-918
Updated
2026-11-02
OSV6.9

OpenClaw hardened cron webhook delivery against SSRF

OpenClaw is a personal AI assistant. In versions 2026.2.17 and below, Cron webhook delivery in src/gateway/server-cron.ts uses fetch() directly, so webhook targets can reach private/metadata/internal endpoints without SSRF policy checks. This issue was fixed in version 2026.2.19.

Record
CVE-2026-27488
CVSS 4.0
6.9 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:L
Weakness
CWE-918
Updated
2026-11-11
OSVGHSA-w45g-5746-x9fp6.9

OpenClaw hardened cron webhook delivery against SSRF

Affected Packages / Versions

  • openclaw npm package versions <= 2026.2.17.

Vulnerability

Cron webhook delivery in src/gateway/server-cron.ts used fetch() directly, so webhook targets could reach private/metadata/internal endpoints without SSRF policy checks.

Fix Commit(s)

  • 99db4d13e
  • 35851cdaf

Thanks @Adam55A-code for reporting.

Record
GHSA-w45g-5746-x9fp
CVSS 4.0
6.9 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:L
Weakness
CWE-918
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
openclaw
npm
through 2026.2.17
2026.2.19
openclaw
npm
before 2026.2.19
2026.2.19

History

History
RecordedChangedSources
factsOSV
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-27488 is a medium vulnerability (CVSS 6.9) in Openclaw, published February 20, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.37%, the 31st percentile. Fixed in openclaw 2026.2.19.

References

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