# CPAN YAML-Syck vulnerabilities

Source: https://junglewise.ai/threats/technologies/yaml-syck  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 11 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/yaml-syck.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 3 vulnerabilities in CPAN YAML-Syck: 0 in the last 7 days and 0 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-57076, was published on 16 July 2026.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 0
- All time: 3 (0 critical, 0 exploited in the wild)

## About CPAN YAML-Syck

Perl YAML parser and emitter library using the Syck parsing engine.

## Latest CPAN YAML-Syck vulnerabilities

- [CVE-2026-57076: YAML::Syck heap use-after-free in anchor key handling](https://junglewise.ai/threats/cve-2026-57076-yaml-syck-heap-use-after-free-in-anchor-key-handling) (info, CVSS 5.3, published 16 Jul 2026)
- [CVE-2026-57075: YAML::Syck out-of-bounds read in syck_base64dec](https://junglewise.ai/threats/cve-2026-57075-yaml-syck-out-of-bounds-read-in-syck-base64dec) (info, CVSS 5.3, published 16 Jul 2026)
- [CVE-2026-5089: YAML::Syck out-of-bounds read in base60 parsing](https://junglewise.ai/threats/cve-2026-5089-yaml-syck-out-of-bounds-read-in-base60-parsing) (info, CVSS 0, published 12 May 2026)

## Most severe CPAN YAML-Syck vulnerabilities

- [CVE-2026-57076: YAML::Syck heap use-after-free in anchor key handling](https://junglewise.ai/threats/cve-2026-57076-yaml-syck-heap-use-after-free-in-anchor-key-handling) (info, CVSS 5.3, published 16 Jul 2026)
- [CVE-2026-57075: YAML::Syck out-of-bounds read in syck_base64dec](https://junglewise.ai/threats/cve-2026-57075-yaml-syck-out-of-bounds-read-in-syck-base64dec) (info, CVSS 5.3, published 16 Jul 2026)
- [CVE-2026-5089: YAML::Syck out-of-bounds read in base60 parsing](https://junglewise.ai/threats/cve-2026-5089-yaml-syck-out-of-bounds-read-in-base60-parsing) (info, CVSS 0, published 12 May 2026)

## Vulnerabilities per week

Nothing was published in the last eight weeks.

| 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 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Other CPAN technologies

- [CPAN Text::CSV XS](https://junglewise.ai/threats/technologies/cpan-text-csv-xs): 7 vulnerabilities
- [Cpanel::JSON::XS](https://junglewise.ai/threats/technologies/cpanel-json-xs): 7 vulnerabilities
- [CPAN Net::IDN::Punycode](https://junglewise.ai/threats/technologies/net-idn-punycode): 5 vulnerabilities
- [CPAN Net::CIDR::Lite](https://junglewise.ai/threats/technologies/net-cidr-lite): 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, "CPAN YAML-Syck vulnerabilities", https://junglewise.ai/threats/technologies/yaml-syck, 11 November 2026.