CVE-2022-1471

HIGHNVD 8.39.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because EPSS predicts 94% probability of exploitation within the next 30 days (top 0.1% of all CVEs). NVD baseline CVSS 8.3 retained for reference. Confidence: see factors.

Triggered by: EPSS exploit prediction ≥85%
Sources: epss, nvd
Weaponized
8.3
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 100%
CISA-KEV: Not listedEPSS: 100%CVSS: 8.3Exploit: NoneExposed: 0

A fix is available — apply it.

SnakeYaml's Constructor() class does not restrict types which can be instantiated during deserialization. Deserializing yaml content provided by an attacker can lead to remote code execution. We recommend using SnakeYaml's SafeConsturctor when parsing untrusted content to restrict deserialization. We recommend upgrading to version 2.0 and beyond.

CVSS v3
8.3
EG Score
9.0(high)
EPSS
99.9%
KEV
Not listed

Published

December 1, 2022

Last Modified

June 18, 2025

References (20)

Vendor Advisories for CVE-2022-1471(20)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(21)

Vendor / EcosystemFixed in / PatchReleasedSource
redhateap7-snakeyaml-0:1.33.0-1.SP1_redhat_00001.1.ep7.el72025-02-24redhat
redhateap7-snakeyaml-0:1.33.0-1.SP1_redhat_00001.1.el7eap2025-02-24redhat
redhatsnakeyaml2024-03-18redhat
redhatjenkins-2-plugins-0:4.11.1706516946-1.el82024-02-12redhat
redhatredhat-openjdk-18/openjdk18-openshift:1.17-12024-01-22redhat
redhatjenkins-2-plugins-0:4.11.1698299029-1.el82023-10-30redhat
redhatpatch2023-09-14redhat
redhatjenkins-2-plugins-0:4.11.1683009941-1.el82023-05-17redhat
redhatcandlepin-0:4.2.13-1.el8sat2023-05-03redhat
redhateap7-snakeyaml-0:1.33.0-2.SP1_redhat_00001.1.el9eap2023-03-29redhat
redhateap7-snakeyaml-0:1.33.0-2.SP1_redhat_00001.1.el8eap2023-03-29redhat
redhateap7-snakeyaml-0:1.33.0-2.SP1_redhat_00001.1.el7eap2023-03-29redhat
redhatrh-sso-7/sso76-openshift-rhel8:7.6-202023-03-01redhat
redhatrh-sso7-keycloak-0:18.0.6-1.redhat_00001.1.el9sso2023-03-01redhat
redhatrh-sso7-keycloak-0:18.0.6-1.redhat_00001.1.el7sso2023-03-01redhat
redhatrh-sso7-keycloak-0:18.0.6-1.redhat_00001.1.el8sso2023-03-01redhat
redhatjenkins-2-plugins-0:4.9.1675668922-1.el82023-02-23redhat
redhatjenkins-2-plugins-0:4.10.1675407676-1.el82023-02-15redhat
redhatpatch2023-02-14redhat
redhatubi8/openjdk-8-runtime:1.14-102023-01-04redhat
redhatprometheus-jmx-exporter-0:0.12.0-9.el8_72022-12-15redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)
Maven(1)
PackageVulnerable rangeFixed inDependents
org.yaml:snakeyaml1.10 ... 1.9 (30 versions)2.0—

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(7)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 2× in last 7d / 4× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-09 19:07 UTCEPSS rescore
  2. 2026-07-09 19:07 UTCEPSS rescore
  3. 2026-06-28 12:49 UTCOSV refresh
  4. 2026-06-15 17:46 UTCEPSS rescore
  5. 2026-06-10 23:09 UTCOSV refresh
  6. 2026-06-05 06:09 UTCEPSS rescore
  7. 2026-06-05 06:09 UTCEPSS rescore
  8. 2026-05-31 22:29 UTCEPSS rescore
  9. 2026-05-29 13:42 UTCEPSS rescore
  10. 2026-05-27 13:39 UTCEPSS rescore
  11. 2026-05-27 13:39 UTCEPSS rescore
  12. 2026-05-26 07:17 UTCEPSS rescore
  13. 2026-05-26 07:17 UTCEPSS rescore
  14. 2026-05-25 11:22 UTCEG score recompute
  15. 2026-05-25 11:22 UTCVendor advisory

Publicly available exploits

(3 references)

Working exploit code is in the public domain (1 Metasploit module) (2 GitHub PoCs). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Metasploitexploit/multi/http/torchserver_cve_2023_43654✓ verified
    First seen Oct 3, 2023

    PyTorch Model Server Registration and Deserialization RCE

    Open source ↗
  • GitHub PoCfalconkei/snakeyaml_cve_poc
    First seen May 8, 2023

    SnakeYAML-CVE-2022-1471-POC

    Open source ↗
  • GitHub PoC1fabunicorn/SnakeYAML-CVE-2022-1471-POC
    First seen Mar 2, 2023

    Code for veracode blog

    Open source ↗

Frequently asked(5)

What is CVE-2022-1471?
CVE-2022-1471 is a high vulnerability published on December 1, 2022. SnakeYaml's Constructor() class does not restrict types which can be instantiated during deserialization. Deserializing yaml content provided by an attacker can lead to remote code execution. We recommend using SnakeYaml's SafeConsturctor when parsing untrusted content to restrict deserialization.…
When was CVE-2022-1471 disclosed?
CVE-2022-1471 was first published in the National Vulnerability Database on December 1, 2022, with the most recent update on June 18, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-1471 actively exploited?
CVE-2022-1471 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 99.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2022-1471?
CVE-2022-1471 has a CVSS v3 base score of 8.3 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
How do I remediate CVE-2022-1471?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-1471, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2022-1471

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