# Perl CGI vulnerabilities Source: https://junglewise.ai/threats/technologies/perl-cgi Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats Updated: 11 November 2026, 03:07 UTC. Rebuilt every hour. Data: https://junglewise.ai/threats/technologies/perl-cgi.json License: CC BY 4.0 with a link back Junglewise Threat Intelligence has tracked 13 vulnerabilities in Perl CGI: 0 in the last 7 days and 13 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-120651, was published on 4 November 2026. 13 vulnerabilities in the last four weeks, up from none in the four before. ## Counts - Last 7 days: 0 - Last 30 days: 13 - Last 90 days: 13 - All time: 13 (0 critical, 0 exploited in the wild) ## About Perl CGI Perl library for handling Common Gateway Interface requests and responses. ## Latest Perl CGI vulnerabilities - [CVE-2026-120651: Perl CGI infinite loop in read_postdata_putdata with disabled uploads](https://junglewise.ai/threats/cve-2026-120651-cgi-versions-before-5-00-for-perl-allow-an-infinite-loop-on-a) (info, published 4 Nov 2026) - [CVE-2026-120650: CGI for Perl resource exhaustion via missing upload limits](https://junglewise.ai/threats/cve-2026-120650-cgi-versions-before-5-00-for-perl-allow-memory-cpu-and-disk) (info, published 4 Nov 2026) - [CVE-2026-120648: Perl CGI HTML injection via comment delimiter](https://junglewise.ai/threats/cve-2026-120648-cgi-versions-before-5-00-for-perl-allow-html-injection-via-text) (info, published 4 Nov 2026) - [CVE-2026-120647: Perl CGI header attachment parameter injection](https://junglewise.ai/threats/cve-2026-120647-cgi-versions-before-5-00-for-perl-allow-content-disposition) (info, published 4 Nov 2026) - [CVE-2026-120643: Perl CGI cross-site scripting in url and self_url](https://junglewise.ai/threats/cve-2026-120643-cgi-versions-from-4-62-before-5-00-for-perl-allow-cross-site) (info, published 4 Nov 2026) - [CVE-2026-120642: Perl CGI taint bypass via request-derived values](https://junglewise.ai/threats/cve-2026-120642-cgi-versions-before-5-00-for-perl-return-request-derived-values) (info, published 4 Nov 2026) - [CVE-2026-120639: CGI HTTP header injection via entity decoding in header values](https://junglewise.ai/threats/cve-2026-120639-cgi-versions-before-5-00-for-perl-allow-http-header-injection) (info, published 4 Nov 2026) - [CVE-2026-120638: CGI for Perl open redirect via HTML entity decoding in URL](https://junglewise.ai/threats/cve-2026-120638-cgi-versions-before-5-00-for-perl-allow-open-redirects-via-html) (info, published 4 Nov 2026) - [CVE-2026-120637: Perl CGI parameter injection via unrecognized REQUEST_METHOD](https://junglewise.ai/threats/cve-2026-120637-cgi-versions-before-5-00-for-perl-take-request-parameters-from) (info, published 4 Nov 2026) - [CVE-2026-120636: Perl CGI open redirect and script injection via REQUEST_URI](https://junglewise.ai/threats/cve-2026-120636-cgi-versions-before-5-00-for-perl-allow-open-redirects-and) (info, published 4 Nov 2026) - [CVE-2026-120635: Perl CGI multipart form field smuggling past proxies and WAFs](https://junglewise.ai/threats/cve-2026-120635-cgi-versions-before-5-00-for-perl-allow-form-fields-to-be) (info, published 4 Nov 2026) - [CVE-2026-120633: CGI for Perl improper validation of X-Forwarded-Host](https://junglewise.ai/threats/cve-2026-120633-cgi-versions-before-5-00-for-perl-trust-the-client-x-forwarded) (info, published 4 Nov 2026) - [CVE-2026-120632: CGI module for Perl ReDoS via multipart/related Content-Type](https://junglewise.ai/threats/cve-2026-120632-cgi-versions-before-5-00-for-perl-allow-cpu-exhaustion-via-a) (info, published 4 Nov 2026) ## Most severe Perl CGI vulnerabilities - [CVE-2026-120651: Perl CGI infinite loop in read_postdata_putdata with disabled uploads](https://junglewise.ai/threats/cve-2026-120651-cgi-versions-before-5-00-for-perl-allow-an-infinite-loop-on-a) (info, published 4 Nov 2026) - [CVE-2026-120650: CGI for Perl resource exhaustion via missing upload limits](https://junglewise.ai/threats/cve-2026-120650-cgi-versions-before-5-00-for-perl-allow-memory-cpu-and-disk) (info, published 4 Nov 2026) - [CVE-2026-120648: Perl CGI HTML injection via comment delimiter](https://junglewise.ai/threats/cve-2026-120648-cgi-versions-before-5-00-for-perl-allow-html-injection-via-text) (info, published 4 Nov 2026) - [CVE-2026-120647: Perl CGI header attachment parameter injection](https://junglewise.ai/threats/cve-2026-120647-cgi-versions-before-5-00-for-perl-allow-content-disposition) (info, published 4 Nov 2026) - [CVE-2026-120643: Perl CGI cross-site scripting in url and self_url](https://junglewise.ai/threats/cve-2026-120643-cgi-versions-from-4-62-before-5-00-for-perl-allow-cross-site) (info, published 4 Nov 2026) - [CVE-2026-120642: Perl CGI taint bypass via request-derived values](https://junglewise.ai/threats/cve-2026-120642-cgi-versions-before-5-00-for-perl-return-request-derived-values) (info, published 4 Nov 2026) - [CVE-2026-120639: CGI HTTP header injection via entity decoding in header values](https://junglewise.ai/threats/cve-2026-120639-cgi-versions-before-5-00-for-perl-allow-http-header-injection) (info, published 4 Nov 2026) - [CVE-2026-120638: CGI for Perl open redirect via HTML entity decoding in URL](https://junglewise.ai/threats/cve-2026-120638-cgi-versions-before-5-00-for-perl-allow-open-redirects-via-html) (info, published 4 Nov 2026) - [CVE-2026-120637: Perl CGI parameter injection via unrecognized REQUEST_METHOD](https://junglewise.ai/threats/cve-2026-120637-cgi-versions-before-5-00-for-perl-take-request-parameters-from) (info, published 4 Nov 2026) - [CVE-2026-120636: Perl CGI open redirect and script injection via REQUEST_URI](https://junglewise.ai/threats/cve-2026-120636-cgi-versions-before-5-00-for-perl-allow-open-redirects-and) (info, published 4 Nov 2026) ## Vulnerabilities per week 13 vulnerabilities in the last four weeks, up from none in the four before. | Week of | Vulns | Critical | Exploited | | --- | --- | --- | --- | | 17 Aug 2026 | 0 | 0 | 0 | | 24 Aug 2026 | 0 | 0 | 0 | | 31 Aug 2026 | 0 | 0 | 0 | | 7 Sep 2026 | 0 | 0 | 0 | | 14 Sep 2026 | 0 | 0 | 0 | | 21 Sep 2026 | 0 | 0 | 0 | | 28 Sep 2026 | 0 | 0 | 0 | | 5 Oct 2026 | 0 | 0 | 0 | | 12 Oct 2026 | 0 | 0 | 0 | | 19 Oct 2026 | 0 | 0 | 0 | | 26 Oct 2026 | 0 | 0 | 0 | | 2 Nov 2026 | 13 | 0 | 0 | | 9 Nov 2026 | 0 | 0 | 0 | ## Other Perl technologies - [Perl MIME-tools](https://junglewise.ai/threats/technologies/mime-tools): 5 vulnerabilities - [Perl HTTP::Body](https://junglewise.ai/threats/technologies/http-body): 3 vulnerabilities - [Perl DBI](https://junglewise.ai/threats/technologies/perl-dbi): 3 vulnerabilities - [Perl Web::Simple](https://junglewise.ai/threats/technologies/web-simple): 3 vulnerabilities ## Sources NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Perl CGI vulnerabilities", https://junglewise.ai/threats/technologies/perl-cgi, 11 November 2026.