VulnSocial

CVE-2026-35640Disclosure(openclaw / openclaw)

LOWCVSS 7.5 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

OpenClaw before 2026.3.25 parses JSON request bodies before validating webhook signatures, allowing unauthenticated attackers to force resource-intensive parsing operations. Remote attackers can send malicious webhook requests to trigger denial of service by exhausting server resources through forced JSON parsing before signature rejection.

openclaw CVEsBack to dashboard
0.0/ 10 priority

Sources & remediation

Patch / fix
Vendor / third-party advisories
Weakness type (CWE)
CWE-696

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • openclaw

Threat summary

  • 3 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Technical details provided in 3 signals
  • Disclosure: 3 classified signals
  • Peaked 1d ago at 2 mentions (2026-04-09); latest day: 1
  • 3 total mentions across 2 days

Affected systems

Vendors
openclaw
Products
openclaw

Deep dive

Activity timeline3 mentions / 2d
01122Mentions · 2026-04-09: 2Mentions · 2026-04-10: 1Technical Details · 2026-04-09: 2Technical Details · 2026-04-10: 104-0904-10
Signal classification1 categories
Disclosure
3100.0%
Referenced assets4 URLs
Classification over time
DateTotalLabels
2026-04-092
Disclosure2
2026-04-101
Disclosure1
Full discourse3 posts
  • Vulmon Vulnerability Feed@VulmonFeeds
    Disclosure

    CVE-2026-35640 Denial of Service via Unauthenticated JSON Parsing in OpenClaw Be... https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-35640 Customizable Vulnerability Alerts: https://alerts.vulmon.com/?utm_source=twitter&utm_medium=social&utm_campaign=2102281&utm_content=4

    Post summary

    The tweet announces a newly reported CVE-2026-35640, a denial‑of‑service flaw in OpenClaw involving unauthenticated JSON parsing, and provides a link for further details.

    0000051
    4.0K followersView on X
  • Infoflowcloud@infoflowcloud
    Disclosure

    🚨*CVE* CVE-2026-35640 OpenClaw before 2026.3.25 parses JSON request bodies before validating webhook signatures, allowing unauthenticated attackers to force resource-intensive parsing oper… https://www.cve.org/CVERecord?id=CVE-2026-35640 ----- Traducción: CVE-2026-35640 Ope… http://infoflow.cloud`

    Post summary

    The tweet links to a CVE record that discloses an unauthenticated JSON‑parsing vulnerability in OpenClaw, but does not provide a PoC, exploitation evidence, or patch information.

    0000030
    67 followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-35640 OpenClaw before 2026.3.25 parses JSON request bodies before validating webhook signatures, allowing unauthenticated attackers to force resource-intensive parsing oper… https://www.cve.org/CVERecord?id=CVE-2026-35640

    Post summary

    The text discloses CVE‑2026‑35640, highlighting a JSON parsing flaw that allows unauthenticated attackers to trigger resource‑intensive operations before webhook signature validation.

    00000164
    57.0K followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appopenclawopenclaw-node.js-

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