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CVE-2026-29609

OpenClaw versions prior to 2026.2.14 contain a denial of service vulnerability in the fetchWithGuard function that allocates entire response payloads in memory before enforcing maxBytes limits. Remote attackers can trigger memory exhaustion by serving oversized responses without content-length headers to cause availability loss.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:5d8935da7cca48f94ca1ae703b0675432538049cf7047547ae34129099f836f3
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cvss · 2 assertions

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:ec62a2c9b68fb211a9d08c62f45b18d2f2d70b9cbef70d00d0cd68cff63253c1 · sha256:7730e8cfc8007e14… · /containers/cna/metrics/1/cvssV3_1

{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.7,"baseSeverity":"HIGH","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"…

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:ec62a2c9b68fb211a9d08c62f45b18d2f2d70b9cbef70d00d0cd68cff63253c1 · sha256:7730e8cfc8007e14… · /containers/cna/metrics/0/cvssV4_0

Affected products and versions

1 source assertion
{"defaultStatus":"unaffected","packageURL":"pkg:npm/openclaw","product":"OpenClaw","vendor":"OpenClaw","versions":[{"lessThan":"2026.2.14","status":"affected","version":"0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ec62a2c9b68fb211a9d08c62f45b18d2f2d70b9cbef70d00d0cd68cff63253c1 · sha256:7730e8cfc8007e14… · /containers/cna/affected/0

Provider-owned CVSS observations

2 source assertions
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:ec62a2c9b68fb211a9d08c62f45b18d2f2d70b9cbef70d00d0cd68cff63253c1 · sha256:7730e8cfc8007e14… · /containers/cna/metrics/1/cvssV3_1
{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.7,"baseSeverity":"HIGH","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:ec62a2c9b68fb211a9d08c62f45b18d2f2d70b9cbef70d00d0cd68cff63253c1 · sha256:7730e8cfc8007e14… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-770","description":"Allocation of Resources Without Limits or Throttling","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:ec62a2c9b68fb211a9d08c62f45b18d2f2d70b9cbef70d00d0cd68cff63253c1 · sha256:7730e8cfc8007e14… · /containers/cna/problemTypes/0/descriptions/0

Source references

4 source assertions
{"name":"Patch Commit","tags":["patch"],"url":"https://github.com/openclaw/openclaw/commit/00a08908892d1743d1fc52e5cbd9499dd5da2fe0"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ec62a2c9b68fb211a9d08c62f45b18d2f2d70b9cbef70d00d0cd68cff63253c1 · sha256:7730e8cfc8007e14… · /containers/cna/references/1
{"name":"GitHub Security Advisory (GHSA-j27p-hq53-9wgc)","tags":["vendor-advisory"],"url":"https://github.com/openclaw/openclaw/security/advisories/GHSA-j27p-hq53-9wgc"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ec62a2c9b68fb211a9d08c62f45b18d2f2d70b9cbef70d00d0cd68cff63253c1 · sha256:7730e8cfc8007e14… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/openclaw/openclaw/security/advisories/GHSA-j27p-hq53-9wgc"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ec62a2c9b68fb211a9d08c62f45b18d2f2d70b9cbef70d00d0cd68cff63253c1 · sha256:7730e8cfc8007e14… · /containers/adp/0/references/0
{"name":"VulnCheck Advisory: OpenClaw < 2026.2.14 - Denial of Service via Unbounded URL-backed Media Fetch","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/openclaw-denial-of-service-via-unbounded-url-backed-media-fetch"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ec62a2c9b68fb211a9d08c62f45b18d2f2d70b9cbef70d00d0cd68cff63253c1 · sha256:7730e8cfc8007e14… · /containers/cna/references/2

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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