CVE-2026-19487
A remote, anonymous attacker can exploit a vulnerability in Perl to perform a denial of service attack.
CSIRTS triage
- What
- A vulnerability in Perl allows remote denial of service attacks.
- Who is affected
- Perl installations and applications using Perl are exposed to remote anonymous attackers.
- Urgency
- Moderate; denial of service impact is confirmed but no code execution or data access reported.
- Action
- Upgrade Perl to a patched version addressing CVE-2026-19487.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.43% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 36% of all EPSS-scored CVEs.
Advisory coverage (3)
- medium[NEW] [medium] Perl: Vulnerability enables denial of servicecert-bund · 2026-08-14
- mediumCVE-2026-19487: Perl versions from 5.9.4 before 5.41.9 produce incorrect regular expression match results when…nvd · 2026-08-13
- mediumCVE-2026-19487: Perl versions from 5.9.4 before 5.41.9 produce incorrect regular expression match results when…msrc · 2026-08-11
External references
Embed the live status
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[](https://www.csirts.com/cve/CVE-2026-19487)