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CVE-2026-43535

OpenClaw < 2026.4.14 - Authorization Context Reuse in Collect-Mode Queue Batches

7.6 HighFix available

OpenClaw before 2026.4.14 contains an authorization context reuse vulnerability in collect-mode queue batches that allows messages from different senders to inherit the final sender's authorization context. Attackers can exploit this by sending multiple queued messages to drain batches using a more privileged sender's context, causing earlier messages to execute with elevated permissions.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
High
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
None

Exploit likelihood

0.22%Up 0.2 points since May 5, 2026
90%50%10%1%

What each source reports

CVE List Score used 7.6

OpenClaw < 2026.4.14 - Authorization Context Reuse in Collect-Mode Queue Batches

OpenClaw before 2026.4.14 contains an authorization context reuse vulnerability in collect-mode queue batches that allows messages from different senders to inherit the final sender's authorization context. Attackers can exploit this by sending multiple queued messages to drain batches using a more privileged sender's context, causing earlier messages to execute with elevated permissions.

Record
CVE-2026-43535
CVSS 4.0
7.6 HighCVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
CVSS 3.1
6.8 MediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
Weakness
CWE-266
Updated
2026-11-02
EUVDEUVD-2026-27281 7.6

OpenClaw before 2026.4.14 contains an authorization context reuse vulnerability in collect-mode queue batches that allows messages from different senders to inherit the final sender's authorization context. Attackers can exploit this by sending multiple queued messages to drain batches using a more privileged sender's context, causing earlier messages to execute with elevated permissions.

Record
EUVD-2026-27281
CVSS 4.0
7.6 HighCVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Updated
2026-11-02
GitHub AdvisoriesGHSA-jwrq-8g5x-5fhm 5.3

OpenClaw: Collect-mode queue batches could reuse the last sender authorization context

Summary

Collect-mode queue batches could reuse the last sender authorization context.

Affected Packages / Versions

  • Package: openclaw
  • Ecosystem: npm
  • Affected versions: < 2026.4.14
  • Patched versions: >= 2026.4.14

Impact

Collect-mode queued messages from different senders could be drained as one batch using the final sender's authorization context, allowing earlier messages to inherit a more privileged context.

Technical Details

The fix splits collect-mode batches by sender authorization context before dispatch, preserving each message's own trust state.

Fix

The issue was fixed in #66024. The first stable tag containing the fix is v2026.4.14, and [email protected] includes the fix.

Fix Commit(s)

  • 43d4be902755c970b3d15608679761877718da69
  • PR: #66024

Release Process Note

Users should upgrade to openclaw 2026.4.14 or newer. The latest npm release, 2026.4.14, already includes the fix.

Credits

Thanks to @zsxsoft, with sponsorship from @KeenSecurityLab and @qclawer for reporting this issue.

Record
GHSA-jwrq-8g5x-5fhm
CVSS 4.0
5.3 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
CVSS 3.1
6.8 MediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
Weakness
CWE-266, CWE-863
Updated
2026-11-02
NVD 7.6

OpenClaw before 2026.4.14 contains an authorization context reuse vulnerability in collect-mode queue batches that allows messages from different senders to inherit the final sender's authorization context. Attackers can exploit this by sending multiple queued messages to drain batches using a more privileged sender's context, causing earlier messages to execute with elevated permissions.

Record
CVE-2026-43535
CVSS 4.0
7.6 HighCVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/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
6.8 MediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
CVSS 3.1
8.1 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Weakness
CWE-266
Updated
2026-11-02
OSV 7.6

OpenClaw < 2026.4.14 - Authorization Context Reuse in Collect-Mode Queue Batches

OpenClaw before 2026.4.14 contains an authorization context reuse vulnerability in collect-mode queue batches that allows messages from different senders to inherit the final sender's authorization context. Attackers can exploit this by sending multiple queued messages to drain batches using a more privileged sender's context, causing earlier messages to execute with elevated permissions.

Record
CVE-2026-43535
CVSS 4.0
7.6 HighCVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Weakness
CWE-266
Updated
2026-11-02
OSVGHSA-jwrq-8g5x-5fhm 5.3

OpenClaw: Collect-mode queue batches could reuse the last sender authorization context

Summary

Collect-mode queue batches could reuse the last sender authorization context.

Affected Packages / Versions

  • Package: openclaw
  • Ecosystem: npm
  • Affected versions: < 2026.4.14
  • Patched versions: >= 2026.4.14

Impact

Collect-mode queued messages from different senders could be drained as one batch using the final sender's authorization context, allowing earlier messages to inherit a more privileged context.

Technical Details

The fix splits collect-mode batches by sender authorization context before dispatch, preserving each message's own trust state.

Fix

The issue was fixed in #66024. The first stable tag containing the fix is v2026.4.14, and [email protected] includes the fix.

Fix Commit(s)

  • 43d4be902755c970b3d15608679761877718da69
  • PR: #66024

Release Process Note

Users should upgrade to openclaw 2026.4.14 or newer. The latest npm release, 2026.4.14, already includes the fix.

Credits

Thanks to @zsxsoft, with sponsorship from @KeenSecurityLab and @qclawer for reporting this issue.

Record
GHSA-jwrq-8g5x-5fhm
CVSS 4.0
5.3 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
CVSS 3.1
6.8 MediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
Weakness
CWE-266, CWE-863
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
openclaw
npm
 before 2026.4.14
2026.4.14

History

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

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

In short

CVE-2026-43535 is a high vulnerability (CVSS 7.6) in Openclaw, published April 17, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.22%, the 12th percentile. Fixed in openclaw 2026.4.14.

References

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