Perl vulnerabilities: known CVEs & security history
Perl · Web / Runtime · 54 tracked CVEs · 0 actively exploited · updated June 2026 · what is a CVE? →
This is the full list of known vulnerabilities (CVEs) across all Perl release lines — 54 in total. A CVE here doesn't mean your version is affected — check Perl's current status and the safe version to run.
Known Perl CVEs
Actively-exploited and most-severe first. Open any CVE for full details.
| CVE | Severity | CVSS | EPSS | Year |
|---|---|---|---|---|
| CVE-2026-8376 | critical | 9.8 | 0% | 2026 |
| CVE-2026-4176 | critical | 9.8 | 1% | 2026 |
| CVE-2022-48522 | critical | 9.8 | 2% | 2023 |
| CVE-2018-18314 | critical | 9.8 | 6% | 2018 |
| CVE-2018-18311 | critical | 9.8 | 12% | 2018 |
| CVE-2018-18312 | critical | 9.8 | 12% | 2018 |
| CVE-2018-6913 | critical | 9.8 | 11% | 2018 |
| CVE-2018-6797 | critical | 9.8 | 8% | 2018 |
| CVE-2017-12814 | critical | 9.8 | 7% | 2017 |
| CVE-2015-8608 | critical | 9.8 | 5% | 2017 |
| CVE-2018-18313 | critical | 9.1 | 9% | 2018 |
| CVE-2017-12883 | critical | 9.1 | 6% | 2017 |
| CVE-2020-10878 | high | 8.6 | 5% | 2020 |
| CVE-2024-56406 | high | 8.4 | 0% | 2025 |
| CVE-2020-10543 | high | 8.2 | 11% | 2020 |
| CVE-2023-31486 | high | 8.1 | 2% | 2023 |
| CVE-2023-31484 | high | 8.1 | 2% | 2023 |
| CVE-2023-47039 | high | 7.8 | 0% | 2024 |
| CVE-2021-36770 | high | 7.8 | 1% | 2021 |
| CVE-2016-6185 | high | 7.8 | 1% | 2016 |
| CVE-2016-1238 | high | 7.8 | 1% | 2016 |
| CVE-2020-12723 | high | 7.5 | 6% | 2020 |
| CVE-2018-12015 | high | 7.5 | 8% | 2018 |
| CVE-2018-6798 | high | 7.5 | 4% | 2018 |
| CVE-2017-12837 | high | 7.5 | 6% | 2017 |
| CVE-2016-1246 | high | 7.5 | 4% | 2016 |
| CVE-2015-8853 | high | 7.5 | 3% | 2016 |
| CVE-2016-2381 | high | 7.5 | 9% | 2016 |
| CVE-2013-7422 | high | 7.5 | 3% | 2015 |
| CVE-2013-1667 | high | 7.5 | 4% | 2013 |
| CVE-2012-6329 | high | 7.5 | 62% | 2013 |
| CVE-2012-5195 | high | 7.5 | 5% | 2012 |
| CVE-2010-1168 | high | 7.5 | 4% | 2010 |
| CVE-2009-0663 | high | 7.5 | 4% | 2009 |
| CVE-2023-47038 | high | 7 | 1% | 2023 |
| CVE-2008-5303 | medium | 6.9 | 0% | 2008 |
| CVE-2008-5302 | medium | 6.9 | 0% | 2008 |
| CVE-2011-3599 | medium | 5.8 | 2% | 2011 |
| CVE-1999-1386 | medium | 5.5 | 0% | 1999 |
| CVE-2011-2939 | medium | 5.1 | 3% | 2012 |
| CVE-2012-1151 | medium | 5 | 3% | 2012 |
| CVE-2011-0761 | medium | 5 | 9% | 2011 |
| CVE-2011-1487 | medium | 5 | 9% | 2011 |
| CVE-2010-1158 | medium | 5 | 2% | 2010 |
| CVE-2009-3626 | medium | 5 | 2% | 2009 |
| CVE-2008-1927 | medium | 5 | 3% | 2008 |
| CVE-2008-2827 | medium | 4.6 | 1% | 2008 |
| CVE-2005-3962 | medium | 4.6 | 1% | 2005 |
| CVE-2010-4777 | medium | 4.3 | 6% | 2014 |
| CVE-2011-2728 | medium | 4.3 | 1% | 2012 |
| CVE-2011-2201 | medium | 4.3 | 6% | 2011 |
| CVE-2009-1884 | medium | 4.3 | 2% | 2009 |
| CVE-2011-4363 | low | 2.6 | 0% | 2012 |
| CVE-2014-4330 | low | 2.1 | 1% | 2014 |
Is my Perl version affected?
The list above spans every release. To know whether your version is affected — and the minimum safe version to upgrade to — check it directly.
Check your Perl version → · Monitor Perl for new CVEs →
Perl vulnerabilities — frequently asked
How many known vulnerabilities does Perl have?
IsItPatched tracks 54 CVEs for Perl. 12 are critical-severity and 23 high-severity. These span every release line — what matters is whether the version you run is affected.
Does Perl have any actively-exploited vulnerabilities?
None of Perl's tracked CVEs are currently in CISA's KEV catalog — but new ones can be added at any time, so keep your version current.
What is the most severe Perl vulnerability?
Among tracked issues, CVE-2026-8376 (CRITICAL, CVSS 9.8) ranks highest — a CWE-680 weakness.
Is Perl safe to use?
It depends on the version. The latest supported Perl release (5.42.2) clears the known issues; older versions may still be affected. Check the exact version you run for a verdict.
CVE data aggregated from NVD, CISA KEV and EPSS (FIRST.org). Related: Perl security status · Perl end-of-life · actively-exploited CVEs. Always verify against Perl's advisories — see our disclaimer.