CallBackery versions before 0.62.0 for Perl allow denial of service via the request path interpolated as a regular expression under CGI, FastCGI and PSGI.
The before_dispatch hook installed by startup() removes PATH_INFO from the end of the request URI with a substitution that interpolates PATH_INFO unquoted. Under CGI, FastCGI and PSGI both values come from the request, so the client chooses both the pattern and the string it is matched against.
A short unauthenticated request with a backreference in the path backtracks exponentially and can keep a worker process busy for minutes.
CVSS
No CVSS.
References
Configurations
No configuration.
History
30 Oct 2026, 13:18
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-10-30 13:18
Updated : 2026-10-30 17:08
NVD link : CVE-2026-118993
Mitre link : CVE-2026-118993
CVE.ORG link : CVE-2026-118993
JSON object : View
Products Affected
No product.
CWE
CWE-1333
Inefficient Regular Expression Complexity
