CVE-2026-107826

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Source
https://cve.org/CVERecord?id=CVE-2026-107826
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-107826.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-107826
Aliases
Published
2026-10-09T17:33:49Z
Modified
2026-10-11T02:46:45Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
OWASP Coraza WAF: JSON body processor: argument-limit truncation reopens an unbounded-depth gjson.Valid stack overflow (process crash)
Details

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 unauthenticated attacker can submit shallow values followed by an extremely deeply nested JSON tail that was not visited by the bounded walk, causing gjson.Valid to recurse without a depth bound and terminate the hosting process with an unrecoverable fatal stack overflow. The ProcessRequest and ProcessResponse JSON paths share the affected readJSON validation flow, and the payload can remain within recommended body-size and argument-count limits. This issue is fixed in version 3.8.1.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-674"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/107xxx/CVE-2026-107826.json"
}
References

Affected packages

Git / github.com/corazawaf/coraza

Affected ranges

Type
GIT
Repo
https://github.com/corazawaf/coraza
Events
Introduced
ad50864cfa00f5143fff7f6877847326fdc4b394
Fixed
814e1898e083d2ff2ceb644382d0da17e930f93f
Fixed
9f8521398d1ff023b958fad0b944cac265763866
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "3.0.0"
        },
        {
            "fixed": "3.8.1"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

v3.*
v3.0.0
v3.0.1
v3.0.2
v3.0.3
v3.0.4
v3.1.0
v3.2.0
v3.2.1
v3.3.0
v3.3.1
v3.3.2
v3.3.3
v3.4.0
v3.5.0
v3.6.0
v3.7.0
v3.8.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-107826.json"