CVE Explorer
CVE-2026-52747
ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx. Prior to 3.0.16, the multipart/form-data request body parser in libmodsecurity silently removes embedded line breaks from non-file form-field values before exporting them to ARGS and ARGS_POST because src/request_body_processor/multipart.cc overwrites reserved bytes in m_reserve instead of appending the current buffer. This creates a parser differential between ModSecurity and backend a
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"product":"ModSecurity","vendor":"owasp-modsecurity","versions":[{"status":"affected","version":"< 3.0.16"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:3bcad5fad3b77a9b31f643c49ae8755a01817ffb6211192f5cf520f5eb5d12ab · sha256:d0a52610097156f3… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":8.6,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:3bcad5fad3b77a9b31f643c49ae8755a01817ffb6211192f5cf520f5eb5d12ab · sha256:d0a52610097156f3… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-180","description":"CWE-180: Incorrect Behavior Order: Validate Before Canonicalize","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:3bcad5fad3b77a9b31f643c49ae8755a01817ffb6211192f5cf520f5eb5d12ab · sha256:d0a52610097156f3… · /containers/cna/problemTypes/0/descriptions/0
Source references
4 source assertions{"name":"https://github.com/owasp-modsecurity/ModSecurity/commit/875504c2758169c41be1ad2f0cc64d896b7815d7","tags":["x_refsource_MISC"],"url":"https://github.com/owasp-modsecurity/ModSecurity/commit/875504c2758169c41be1ad2f0cc64d896b7815d7"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:3bcad5fad3b77a9b31f643c49ae8755a01817ffb6211192f5cf520f5eb5d12ab · sha256:d0a52610097156f3… · /containers/cna/references/1
{"name":"https://github.com/owasp-modsecurity/ModSecurity/releases/tag/v3.0.16","tags":["x_refsource_MISC"],"url":"https://github.com/owasp-modsecurity/ModSecurity/releases/tag/v3.0.16"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:3bcad5fad3b77a9b31f643c49ae8755a01817ffb6211192f5cf520f5eb5d12ab · sha256:d0a52610097156f3… · /containers/cna/references/2
{"name":"https://github.com/owasp-modsecurity/ModSecurity/security/advisories/GHSA-rcw9-2f5r-7p88","tags":["x_refsource_CONFIRM"],"url":"https://github.com/owasp-modsecurity/ModSecurity/security/advisories/GHSA-rcw9-2f5r-7p88"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:3bcad5fad3b77a9b31f643c49ae8755a01817ffb6211192f5cf520f5eb5d12ab · sha256:d0a52610097156f3… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/owasp-modsecurity/ModSecurity/security/advisories/GHSA-rcw9-2f5r-7p88"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:3bcad5fad3b77a9b31f643c49ae8755a01817ffb6211192f5cf520f5eb5d12ab · sha256:d0a52610097156f3… · /containers/adp/0/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.