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CVE-2026-47667

CImg Library is a C++ library for image processing. Prior to version 4.0.0 in `_load_analyze()`, the header_size field is read as an `unsigned int` from the first 4 bytes of an Analyze/NIfTI file and passed directly to `new unsigned char[header_size]` without being bounded against the actual file size. A value up to ~4 GB is accepted. If the subsequent `fread` returns `short` as it will for any malformed file), the function throws a `CImgIOException` and the allocated buffer is never freed. A 6
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:4d62a32c29f3ee688c1727ff5599b3aab64fda2ce1df408e05b9165d7f0d9529
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 3 assertions

{"cweId":"CWE-401","description":"CWE-401: Missing Release of Memory after Effective Lifetime","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:229779fd545ed8fa2b1935f5453bc2f5436e274b7443b217223de6c9d32ce34c · sha256:9d759a8597d62c47… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-1284","description":"CWE-1284: Improper Validation of Specified Quantity in Input","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:229779fd545ed8fa2b1935f5453bc2f5436e274b7443b217223de6c9d32ce34c · sha256:9d759a8597d62c47… · /containers/cna/problemTypes/2/descriptions/0

{"cweId":"CWE-789","description":"CWE-789: Memory Allocation with Excessive Size Value","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:229779fd545ed8fa2b1935f5453bc2f5436e274b7443b217223de6c9d32ce34c · sha256:9d759a8597d62c47… · /containers/cna/problemTypes/1/descriptions/0

Affected products and versions

1 source assertion
{"product":"CImg","vendor":"GreycLab","versions":[{"status":"affected","version":"< 4.0.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:229779fd545ed8fa2b1935f5453bc2f5436e274b7443b217223de6c9d32ce34c · sha256:9d759a8597d62c47… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"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:v2:229779fd545ed8fa2b1935f5453bc2f5436e274b7443b217223de6c9d32ce34c · sha256:9d759a8597d62c47… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

3 source assertions
{"cweId":"CWE-401","description":"CWE-401: Missing Release of Memory after Effective Lifetime","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:229779fd545ed8fa2b1935f5453bc2f5436e274b7443b217223de6c9d32ce34c · sha256:9d759a8597d62c47… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-1284","description":"CWE-1284: Improper Validation of Specified Quantity in Input","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:229779fd545ed8fa2b1935f5453bc2f5436e274b7443b217223de6c9d32ce34c · sha256:9d759a8597d62c47… · /containers/cna/problemTypes/2/descriptions/0
{"cweId":"CWE-789","description":"CWE-789: Memory Allocation with Excessive Size Value","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:229779fd545ed8fa2b1935f5453bc2f5436e274b7443b217223de6c9d32ce34c · sha256:9d759a8597d62c47… · /containers/cna/problemTypes/1/descriptions/0

Source references

4 source assertions
{"name":"https://github.com/GreycLab/CImg/commit/6a69bf725ffd111a4c7dc61cc15e3661abd158ee","tags":["x_refsource_MISC"],"url":"https://github.com/GreycLab/CImg/commit/6a69bf725ffd111a4c7dc61cc15e3661abd158ee"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:229779fd545ed8fa2b1935f5453bc2f5436e274b7443b217223de6c9d32ce34c · sha256:9d759a8597d62c47… · /containers/cna/references/2
{"name":"https://github.com/GreycLab/CImg/issues/480","tags":["x_refsource_MISC"],"url":"https://github.com/GreycLab/CImg/issues/480"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:229779fd545ed8fa2b1935f5453bc2f5436e274b7443b217223de6c9d32ce34c · sha256:9d759a8597d62c47… · /containers/cna/references/1
{"tags":["exploit"],"url":"https://github.com/GreycLab/CImg/issues/480"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:229779fd545ed8fa2b1935f5453bc2f5436e274b7443b217223de6c9d32ce34c · sha256:9d759a8597d62c47… · /containers/adp/0/references/0
{"name":"https://github.com/GreycLab/CImg/security/advisories/GHSA-rmfc-grgj-qwhv","tags":["x_refsource_CONFIRM"],"url":"https://github.com/GreycLab/CImg/security/advisories/GHSA-rmfc-grgj-qwhv"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:229779fd545ed8fa2b1935f5453bc2f5436e274b7443b217223de6c9d32ce34c · sha256:9d759a8597d62c47… · /containers/cna/references/0

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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