CVE-2026-114100: Coraza from 3.0.4 before 3.8.1 Request Body Inspection Bypass via Content-Type
Vulnerability summary
CVE-2026-114100 is a medium (CVSS 6.9) Improper Input Validation vulnerability in corazawaf coraza. EPSS estimates a 0.28% chance of exploitation in the next 30 days, higher than 20.8% of scored vulnerabilities.
Not severe (CVSS 6.9, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Timeline
- 21-10-2026PublishedVulnerability first disclosed.
- 21-10-2026Last modifiedVulnerability information updated.
Description
Coraza from 3.0.4 before 3.8.1 contains a request body inspection bypass because request-body processor selection compares the entire Content-Type value exactly, so URL-encoded bodies whose Content-Type carries a media-type parameter are never parsed. Unauthenticated attackers can send application/x-www-form-urlencoded; charset=UTF-8 to keep ARGS_POST and REQUEST_BODY empty, evading body rules while the backend still processes the payload.
CVSS metrics
5 scores · 3 sources · 2 versions- NVDNIST6.9MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- NVDNIST5.8MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
- OSV · GoEcosystem advisory · calculated5.8MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
EPSS trend
Probability
0.28%
Chance of exploitation in the next 30 days
Percentile
21%
Versus all other CVEs
30-day change
Change unavailable
Change unavailable
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Github.com/corazawaf/coraza2 products
- v2All versions (No fix recorded)
- v3≥ 3.0.4, < 3.8.1
Corazawaf1 product
- coraza≥ 3.0.4, < 3.8.1
Github.com/corazawaf1 product
- corazaAll versions (No fix recorded)
3 vendors · 4 products
References
7 links- www.vulncheck.com/advisories/…Third Party Advisory
- github.com/corazawaf/corazaPACKAGE