Is there a public exploit for CVE-2026-126673?

No public exploit for CVE-2026-126673 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

— Unscored

Data::Dump::Streamer versions before 3.00 for Perl allow code injection via unescaped Regexp patterns in dumpqr.

CVE-2026-126673

Data::Dump::Streamer versions before 3.00 for Perl allow code injection via unescaped Regexp patterns in dumpqr. A Regexp's pattern is written into a qr literal without escaping "$" or "@", so "@{[ ... ]}" and "${\ ... }" in the pattern run as code when the dump is evaluated. An already escaped delimiter gets a second backslash, which leaves the delimiter bare and ends the qr literal early. An attacker who supplies a pattern that an application compiles, dumps and later restores with eval or do can run arbitrary Perl code.

Assessment

CVSS: Not yet scored
Severity: Unscored
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 12 November 2026
Last updated: 12 November 2026
Assigner: CPANSec

At the source

EUVD (ENISA)

References

https://metacpan.org/release/YVES/Data-Dump-Streamer-3.00/source/Changes

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