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CVE-2026-61455

Grav before 2.0.1 contains a decompression bomb vulnerability in ZipArchiver::extract() that lacks limits on uncompressed size, file count, and nesting depth. Attackers can supply a crafted ZIP archive that expands to fill available disk space, causing denial of service by exhausting storage resources.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:b2aea1b36a0b0e673e52aec15b2002df9f2de493b59eec9dc1fa440b2ca4ac87
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":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/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:v2:82149dae84e6503cdf7d9e0720f75211210a74e340c257d5b7c5e0adcd566946 · sha256:0d2ee680de7da137… · /containers/cna/metrics/1/cvssV3_1

{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":7.1,"baseSeverity":"HIGH","privilegesRequired":"LOW","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:82149dae84e6503cdf7d9e0720f75211210a74e340c257d5b7c5e0adcd566946 · sha256:0d2ee680de7da137… · /containers/cna/metrics/0/cvssV4_0

Affected products and versions

1 source assertion
{"defaultStatus":"unaffected","product":"grav","vendor":"getgrav","versions":[{"lessThan":"2.0.1","status":"affected","version":"0","versionType":"semver"},{"status":"unaffected","version":"2.0.1","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:82149dae84e6503cdf7d9e0720f75211210a74e340c257d5b7c5e0adcd566946 · sha256:0d2ee680de7da137… · /containers/cna/affected/0

Provider-owned CVSS observations

2 source assertions
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/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:v2:82149dae84e6503cdf7d9e0720f75211210a74e340c257d5b7c5e0adcd566946 · sha256:0d2ee680de7da137… · /containers/cna/metrics/1/cvssV3_1
{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":7.1,"baseSeverity":"HIGH","privilegesRequired":"LOW","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:82149dae84e6503cdf7d9e0720f75211210a74e340c257d5b7c5e0adcd566946 · sha256:0d2ee680de7da137… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-409","description":"Improper Handling of Highly Compressed Data (Data Amplification)","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:82149dae84e6503cdf7d9e0720f75211210a74e340c257d5b7c5e0adcd566946 · sha256:0d2ee680de7da137… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"tags":["exploit"],"url":"https://github.com/getgrav/grav/security/advisories/GHSA-928x-9mpw-8h56"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:82149dae84e6503cdf7d9e0720f75211210a74e340c257d5b7c5e0adcd566946 · sha256:0d2ee680de7da137… · /containers/adp/0/references/0
{"name":"GitHub Security Advisory (GHSA-928x-9mpw-8h56)","tags":["vendor-advisory"],"url":"https://github.com/getgrav/grav/security/advisories/GHSA-928x-9mpw-8h56"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:82149dae84e6503cdf7d9e0720f75211210a74e340c257d5b7c5e0adcd566946 · sha256:0d2ee680de7da137… · /containers/cna/references/0
{"name":"VulnCheck Advisory: Grav before 2.0.1 Decompression Bomb via ZipArchiver","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/grav-before-decompression-bomb-via-ziparchiver"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:82149dae84e6503cdf7d9e0720f75211210a74e340c257d5b7c5e0adcd566946 · sha256:0d2ee680de7da137… · /containers/cna/references/1

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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