OWASP Coraza WAF: Truncated multipart body bypasses MULTIPART_STRICT_ERROR (rule 200003) via silent io.ErrUnexpectedEOF handling
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| corazawaf | coraza | affected |
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| Coraza | Coraza |
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| Source | ID | Title |
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Github GHSA |
GHSA-r3rm-qphw-hh76 | Coraza: Truncated multipart body bypasses MULTIPART_STRICT_ERROR (rule 200003) via silent io.ErrUnexpectedEOF handling |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.497% probability within 30 days)
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ssvc
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| First Time appeared |
Coraza
Coraza coraza |
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| Vendors & Products |
Coraza
Coraza coraza |
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| Description | OWASP Coraza WAF is a golang modsecurity compatible web application firewall library. From 3.4.0 until 3.8.0, the multipart processor in internal/bodyprocessors/multipart.go treats io.ErrUnexpectedEOF as nonfatal without setting MULTIPART_STRICT_ERROR. A remote attacker can submit a truncated multipart body that produces io.ErrUnexpectedEOF, causing parsing to stop without raising the strict-error signal used by the recommended defensive rule. Rules 200002 and 200003 do not fire, allowing multipart parser-disagreement payloads to reach a backend that interprets the truncated body differently. This issue is fixed in version 3.8.0. | |
| Title | OWASP Coraza WAF: Truncated multipart body bypasses MULTIPART_STRICT_ERROR (rule 200003) via silent io.ErrUnexpectedEOF handling | |
| Weaknesses | CWE-693 CWE-755 |
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| References |
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| Metrics |
cvssV3_1
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