CVE Explorer

CVE-2026-5439

A memory exhaustion vulnerability exists in ZIP archive processing. Orthanc automatically extracts ZIP archives uploaded to certain endpoints and trusts metadata fields describing the uncompressed size of archived files. An attacker can craft a small ZIP archive containing a forged size value, causing the server to allocate extremely large buffers during extraction.

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:5ae63679076bf1facef42c94c4057a2acfa609c264d9ce5fd66a478dcbda7824

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"DICOM Server","vendor":"Orthanc","versions":[{"lessThanOrEqual":"1.12.10","status":"affected","version":"0","versionType":"custom"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:f7959afc611c6b7661c4039b8ca76b7b5fab77cb2c93fc3cffc1e364867a8d44 · sha256:6511e80c3a75bc65… · /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:f7959afc611c6b7661c4039b8ca76b7b5fab77cb2c93fc3cffc1e364867a8d44 · sha256:6511e80c3a75bc65… · /containers/adp/0/metrics/0/cvssV3_1

CWE assertions

1 source assertion

{"description":"CWE-770 Allocation of Resources Without Limits or Throttling","lang":"en"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:f7959afc611c6b7661c4039b8ca76b7b5fab77cb2c93fc3cffc1e364867a8d44 · sha256:6511e80c3a75bc65… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions

{"url":"https://kb.cert.org/vuls/id/536588"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:f7959afc611c6b7661c4039b8ca76b7b5fab77cb2c93fc3cffc1e364867a8d44 · sha256:6511e80c3a75bc65… · /containers/cna/references/2

{"url":"https://www.machinespirits.de/"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:f7959afc611c6b7661c4039b8ca76b7b5fab77cb2c93fc3cffc1e364867a8d44 · sha256:6511e80c3a75bc65… · /containers/cna/references/1

{"url":"https://www.orthanc-server.com/"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:f7959afc611c6b7661c4039b8ca76b7b5fab77cb2c93fc3cffc1e364867a8d44 · sha256:6511e80c3a75bc65… · /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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