CVE Explorer
CVE-2026-5438
A gzip decompression bomb vulnerability exists when Orthanc processes HTTP request with `Content-Encoding: gzip`. The server does not enforce limits on decompressed size and allocates memory based on attacker-controlled compression metadata. A specially crafted gzip payload can trigger excessive memory allocation and exhaust system memory.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
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_v5affectedurn:baitaphish:normalized-source-record:v2:0b02f66a93d3b8f99baea0dd6eb62fdc62b478ffb35a077682c641a4e1a00f1b · sha256:29dc80b8223e029d… · /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_v5cvssurn:baitaphish:normalized-source-record:v2:0b02f66a93d3b8f99baea0dd6eb62fdc62b478ffb35a077682c641a4e1a00f1b · sha256:29dc80b8223e029d… · /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_v5cweurn:baitaphish:normalized-source-record:v2:0b02f66a93d3b8f99baea0dd6eb62fdc62b478ffb35a077682c641a4e1a00f1b · sha256:29dc80b8223e029d… · /containers/cna/problemTypes/0/descriptions/0
Source references
3 source assertions{"url":"https://kb.cert.org/vuls/id/536588"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:0b02f66a93d3b8f99baea0dd6eb62fdc62b478ffb35a077682c641a4e1a00f1b · sha256:29dc80b8223e029d… · /containers/cna/references/2
{"url":"https://www.machinespirits.de/"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:0b02f66a93d3b8f99baea0dd6eb62fdc62b478ffb35a077682c641a4e1a00f1b · sha256:29dc80b8223e029d… · /containers/cna/references/1
{"url":"https://www.orthanc-server.com/"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:0b02f66a93d3b8f99baea0dd6eb62fdc62b478ffb35a077682c641a4e1a00f1b · sha256:29dc80b8223e029d… · /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.