CVE-2026-61813
LOW
INFO
Priority: 0.01
BB Relevance:
57/100
Published: 2026-11-05
Modified: 2026-11-12
First seen: 2026-11-05
Status: active
Attack Surface
Network
No Auth
No Interaction
CVSS Vector Breakdown
AV:
Network
AC:
High
PR:
None
UI:
None
S:
Unchanged
C:
Low
I:
None
A:
None
Description
ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx. Prior to 2.9.15 and 3.0.17, the HttpsClient::download function in src/utils/https_client.cc sets libcurl CURLOPT_SSL_VERIFYHOST to 1 instead of the strict value 2L. Under adversary-in-the-middle and TLS interception conditions, this non-strict setting may weaken TLS peer identity validation and increase the risk of accepting a certificate for an unintended host. End-to-end exploitation is non-trivial in typical environments. This issue is fixed in versions 2.9.15 and 3.0.17.
Weakness Classification (1)
Affected Software (4)
| Vendor | Product | Version |
|---|---|---|
| owasp-modsecurity | ModSecurity | < 2.9.15 |
| owasp-modsecurity | ModSecurity | >= 3.0.0, < 3.0.17 |
| owasp-modsecurity | ModSecurity | < 2.9.15 |
| owasp-modsecurity | ModSecurity | >= 3.0.0, < 3.0.17 |
References & Advisories (5)
x_refsource_MISC
x_refsource_MISC
x_refsource_MISC
x_refsource_MISC
x_refsource_CONFIRM