HOMEVULNERABILITIESCVE-2022-1471
CRITICAL

CVE-2022-1471

CWE-20Published: December 1, 2022· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

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.

NVD Source

Technical Analysis

CVE-2022-1471 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

snakeyaml_project1 product(s)
snakeyaml
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://bitbucket.org/snakeyaml/snakeyaml/issues/561/cve-2022-1471-vulnerability-in#comment-64581479
ADVISORYhttps://github.com/google/security-research/security/advisories/GHSA-mjmj-j48q-9wg2
ADVISORYhttps://github.com/mbechler/marshalsec
ADVISORYhttps://www.github.com/mbechler/marshalsec/blob/master/marshalsec.pdf?raw=true
ADVISORYhttps://bitbucket.org/snakeyaml/snakeyaml/issues/561/cve-2022-1471-vulnerability-in#comment-64581479
ADVISORYhttps://github.com/google/security-research/security/advisories/GHSA-mjmj-j48q-9wg2
ADVISORYhttps://github.com/mbechler/marshalsec
ADVISORYhttps://www.github.com/mbechler/marshalsec/blob/master/marshalsec.pdf?raw=true

All References (20)

→
http://packetstormsecurity.com/files/175095/PyTorch-Model-Server-Registration-Deserialization-Remote-Code-Execution.html
→
http://www.openwall.com/lists/oss-security/2023/11/19/1
→
https://bitbucket.org/snakeyaml/snakeyaml/issues/561/cve-2022-1471-vulnerability-in#comment-64581479Issue Tracking · Third Party Advisory
→
https://confluence.atlassian.com/security/cve-2022-1471-snakeyaml-library-rce-vulnerability-in-multiple-products-1296171009.html
→
https://github.com/google/security-research/security/advisories/GHSA-mjmj-j48q-9wg2Exploit · Third Party Advisory
→
https://github.com/mbechler/marshalsecExploit · Third Party Advisory
→
https://groups.google.com/g/kubernetes-security-announce/c/mwrakFaEdnc
→
https://infosecwriteups.com/%EF%B8%8F-inside-the-160-comment-fight-to-fix-snakeyamls-rce-default-1a20c5ca4d4c
→
https://security.netapp.com/advisory/ntap-20230818-0015/
→
https://security.netapp.com/advisory/ntap-20240621-0006/
→
https://www.github.com/mbechler/marshalsec/blob/master/marshalsec.pdf?raw=trueExploit · Third Party Advisory
→
http://packetstormsecurity.com/files/175095/PyTorch-Model-Server-Registration-Deserialization-Remote-Code-Execution.html
→
http://www.openwall.com/lists/oss-security/2023/11/19/1
→
https://bitbucket.org/snakeyaml/snakeyaml/issues/561/cve-2022-1471-vulnerability-in#comment-64581479Issue Tracking · Third Party Advisory
→
https://github.com/google/security-research/security/advisories/GHSA-mjmj-j48q-9wg2Exploit · Third Party Advisory

Quick Facts

CVE IDCVE-2022-1471
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-20
CISA KEVNo
Affected1 vendor(s)
PublishedDec 1, 2022

Related CVEs (CWE-20)

CVE-2007-5657
10.0
CVE-2007-5658
10.0
CVE-2007-4561
10.0
CVE-2007-4221
10.0
CVE-2007-4218
10.0
CVE-2008-0656
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2022-1471 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
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