# CVE-2024-39573: Apache HTTP Server: mod_rewrite proxy handler substitution

- Exploited (CISA KEV): no
- Published: 2024-07-01
- CVSS: 7.5 HIGH (v3.1)
- EPSS: 35.4% (98th percentile)
- CWE: CWE-20

Potential SSRF in mod_rewrite in Apache HTTP Server 2.4.59 and earlier allows an attacker to cause unsafe RewriteRules to unexpectedly setup URL's to be handled by mod_proxy.
Users are recommended to upgrade to version 2.4.60, which fixes this issue.

## Edge WAF coverage (claimed by vendors, not measured)

| Vendor | Status | First rule | Days after publication |
|---|---|---|---|
| Cloudflare | Before feed history | — | — |
| AWS | No public claim | — | — |
| Microsoft Azure | No public claim | — | — |
| Google Cloud | No public claim | — | — |
| Fastly | Before feed history | — | — |
| F5 | Rule published | 2024-09-17 | 78 |
| Akamai | No public source | — | — |
| OWASP CRS | No public claim | — | — |

### F5

- 2024-09-17 · new · rule 200007072
  > Added: signature 200007072 "Apache mod_rewrite Filename Confusion" (Path Traversal, risk Low), systems: Apache. References: CVE-2024-39573, CVE-2024-38475, CVE-2024-38474, CVE-2024-38476.
  Source: https://docs.cloud.f5.com/docs-v2/platform/changelogs/security-details-changelog
- 2025-04-28 · updated · rule 200007072
  > Updated: signature 200007072 "Apache mod_rewrite Filename Confusion" (Path Traversal, risk Low), systems: Apache. References: CVE-2024-39573, CVE-2024-38475, CVE-2024-38474, CVE-2024-38476, CVE-2024-38473.
  Source: https://docs.cloud.f5.com/docs-v2/platform/changelogs/security-details-changelog
- 2025-05-22 · updated · rule 200007072
  > Updated: signature 200007072 "Apache mod_rewrite Filename Confusion" (Path Traversal, risk Low), systems: Apache. References: CVE-2024-39573, CVE-2024-38475, CVE-2024-38474, CVE-2024-38476, CVE-2024-38473.
  Source: https://docs.cloud.f5.com/docs-v2/platform/changelogs/security-details-changelog

"No public claim" means no vendor statement names this CVE; "Before feed history" means the CVE is older than the vendor feed. In both cases generic rules may still block it.

HTML: https://cve.vigilbase.com/cve/CVE-2024-39573 · JSON: https://cve.vigilbase.com/api/v1/cves/CVE-2024-39573