35 matches found
CVE-2026-107826 OWASP Coraza WAF: JSON body processor: argument-limit truncation reopens an unbounded-depth gjson.Valid stack overflow (process crash)
OWASP Coraza WAF is a golang modsecurity compatible web application firewall library. From 3.0.0 until 3.8.1, readJSON in internal/bodyprocessors/json.go can stop its bounded flattening walk after reaching SecArgumentsLimit or the byte budget and then call gjson.Valid on the complete raw body. An...
Coraza: Resource exhaustion via deferred file handle accumulation in multipart body processor
Summary defer temp.Close sits inside a for loop in the multipart processor. Go defers run at function return, not loop end, so every file part in the request holds an open fd until ProcessRequest exits. Send enough parts and you hit EMFILE. With CRS loaded, that flips MULTIPARTSTRICTERROR to 1 an...
GHSA-RP9V-7XV3-R6G3 Coraza: Resource exhaustion via deferred file handle accumulation in multipart body processor
Summary defer temp.Close sits inside a for loop in the multipart processor. Go defers run at function return, not loop end, so every file part in the request holds an open fd until ProcessRequest exits. Send enough parts and you hit EMFILE. With CRS loaded, that flips MULTIPARTSTRICTERROR to 1 an...
GHSA-W253-M66G-RX24 Coraza: URL-encoded form Content-Type parameters bypass Coraza body inspection
Summary Coraza fails to inspect URL-encoded form bodies when their valid Content-Type contains a media-type parameter, for example: http Content-Type: application/x-www-form-urlencoded; charset=UTF-8 An unauthenticated attacker can use this header to hide the complete form body from custom Coraza...
Coraza: Unbounded recursion in JSON response body processor causes CPU exhaustion
Summary The JSON response body processor parses response bodies with no recursion limit. ProcessResponse calls readJSONss, ignoreJSONRecursionLimit, and that constant is -1. The guard in readItems only fires on == 0, so counting down from -1 -2, -3, ... never reaches it. The guard is effectively...
GHSA-3C6W-J9XM-8H2H Coraza: Unbounded recursion in JSON response body processor causes CPU exhaustion
Summary The JSON response body processor parses response bodies with no recursion limit. ProcessResponse calls readJSONss, ignoreJSONRecursionLimit, and that constant is -1. The guard in readItems only fires on == 0, so counting down from -1 -2, -3, ... never reaches it. The guard is effectively...
Coraza JSON body processor: argument-limit truncation reopens an unbounded-depth gjson.Valid stack overflow (process crash)
Summary The JSON body processor internal/bodyprocessors/json.go can be made to crash the whole process with an unrecoverable fatal error: stack overflow, using a request body that is well under the recommended SecRequestBodyLimit and the default SecArgumentsLimit. Root cause readJSON...
GHSA-6GCQ-WC29-5XF2 Coraza JSON body processor: argument-limit truncation reopens an unbounded-depth gjson.Valid stack overflow (process crash)
Summary The JSON body processor internal/bodyprocessors/json.go can be made to crash the whole process with an unrecoverable fatal error: stack overflow, using a request body that is well under the recommended SecRequestBodyLimit and the default SecArgumentsLimit. Root cause readJSON...
GHSA-5GJ4-9GM7-2FX2 Coraza body processor has a JSON key collision that allows unauthenticated attackers to bypass OWASP CRS inspection
Summary Coraza's JSON body processor converts nested JSON properties into dot-separated ARGSPOST names without escaping dots contained in literal property names. Two distinct JSON properties can therefore collapse into the same Coraza variable An unauthenticated attacker can place a malicious val...
GHSA-R3RM-QPHW-HH76 Coraza: Truncated multipart body bypasses MULTIPART_STRICT_ERROR (rule 200003) via silent io.ErrUnexpectedEOF handling
Root Cause File: internal/bodyprocessors/multipart.go since commit 3347961b, PR 1453 "feat: ignore unexpected EOF in MIME multipart request body processor", merged 2026-03-06, first shipped in v3.4.0. The multipart body processor treats io.ErrUnexpectedEOF as a benign condition. Three sites are...
Coraza: Truncated multipart body bypasses MULTIPART_STRICT_ERROR (rule 200003) via silent io.ErrUnexpectedEOF handling
Root Cause File: internal/bodyprocessors/multipart.go since commit 3347961b, PR 1453 "feat: ignore unexpected EOF in MIME multipart request body processor", merged 2026-03-06, first shipped in v3.4.0. The multipart body processor treats io.ErrUnexpectedEOF as a benign condition. Three sites are...
PT-2026-107376
Name of the Vulnerable Software and Affected Versions OWASP Coraza WAF versions 3.4.0 through 3.7.0 Description The multipart processor in internal/bodyprocessors/multipart.go incorrectly treats io.ErrUnexpectedEOF as a non-fatal condition without setting the MULTIPART STRICT ERROR flag. This...
CVE-2026-73857
GHSA-jx3r-phvx-2jmj: XML request body processor dereferences an uninitialized parser context pointer...
