CVE-2026-120646None▾ SunlitCGI versions from 4.71 before 5.00 for Perl allow denial of service via a plain string dereferenced as a symbolic reference in uploadInfo. uploadInfo dereferences its argument and calls its filename method without checking that it is an…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
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Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
0.2%
CGI versions from 4.71 before 5.00 for Perl allow denial of service via a plain string dereferenced as a symbolic reference in uploadInfo.
uploadInfo dereferences its argument and calls its filename method without checking that it is an upload filehandle. A plain string naming a defined global variable, such as the parameter value from ?upload=0, is treated as a symbolic reference, and the method call on it dies.
CGI >= 4.71 < 5.00Upgrade to CGI 5.00 or later.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-120650NoneCGI versions before 5.00 for Perl allow memory, CPU and disk exhaustion via missing or unenforced request size, parameter and upload limits
CVE-2026-120641NoneCGI versions before 5.00 for Perl return upload filenames with any client-supplied path, including ../ and Windows paths
CVE-2026-120639NoneCGI versions before 5.00 for Perl allow HTTP header injection via entity decoding after the newline check in header and unchecked values in multipart_start and do_push
CVE-2026-120640NoneCGI versions before 5.00 for Perl allow the POSTDATA, PUTDATA, PATCHDATA and XForms:Model parameters to be set from the query string or form fields
CVE-2026-120648NoneCGI versions before 5.00 for Perl allow HTML injection via text containing --> in comment
CVE-2026-120642NoneCGI versions before 5.00 for Perl return request-derived values untainted under taint mode