CVE-2025-29914: OWASP Coraza WAF has parser confusion which leads to wrong URI in `REQUEST_FILENAME`
Vulnerability summary
CVE-2025-29914 is a medium (CVSS 5.4) vulnerability in corazawaf coraza. EPSS estimates a 0.32% chance of exploitation in the next 30 days, higher than 24.8% of scored vulnerabilities.
Not severe (CVSS 5.4, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 1 · Related 1Timeline
- 20-03-2025PublishedVulnerability first disclosed.
- 20-03-2025Last modifiedVulnerability information updated.
Description
OWASP Coraza WAF is a golang modsecurity compatible web application firewall library. Prior to 3.3.3, if a request is made on an URI starting with //, coraza will set a wrong value in REQUEST_FILENAME. For example, if the URI //bar/uploads/foo.php?a=b is passed to coraza: , REQUEST_FILENAME will be set to /uploads/foo.php. This can lead to a rules bypass. This vulnerability is fixed in 3.3.3.
CVSS metrics
3 scores · 3 sources · 1 version- OSV · GoEcosystem advisory · calculated5.4MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
- NVDNIST5.4MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
EPSS trend
Probability
0.32%
Chance of exploitation in the next 30 days
Percentile
25%
Versus all other CVEs
30-day change
Increase +0.01 pp
From 0.31% on 04-10-2026
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< 3.3.3
Corazawaf1 product
- coraza< 3.3.3
Github.com/corazawaf1 product
- corazaAll versions (No fix recorded)
Github.com/jptosso1 product
- coraza-waf< 3.3.3 | All versions (No fix recorded)
4 vendors · 5 products
References
4 links- github.com/corazawaf/corazaPACKAGE