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Fencer Vulns
high 7.5

CVE-2023-2251 json

Uncaught Exception in eemeli/yaml

published 2023-04-24 3 y ago modified 2026-09-10 1 mo ago also GHSA-f9xv-q969-pqx4 , EUVD-2023-1285

cvss
7.5
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.1%
EPSS 1.1% chance of exploitation in 30 days, percentile 65%
public exploits
0
none known

Summary

Uncaught Exception in GitHub repository eemeli/yaml prior to 2.0.0-5.

Patch / fix

  • npm yaml 2.2.2
  • eemeli eemeli/yaml 2.0.0-5
  • node-yaml Debian 14, Debian 13, Debian 12 2.1.3-2

debian advisories DEBIAN-CVE-2023-2251

  • element-web openSUSE Tumbleweed 1.11.30-2.1

opensuse advisories openSUSE-SU-2024:12888-1

CISA SSVC

Exploitation
Proof of concept is public
Automatable
yes
Technical impact
partial
Assessed
21 mo ago

Exploit prediction

1.09% chance of exploitation in the next 30 days, higher than 65% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • huntr.dev https://huntr.dev/bounties/4b494e99-5a3e-40d9-8678-277f3060e96c referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
GitHub 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
npm yaml
>=2.0.0-5, <2.2.2
2.2.2

Affected products

  • eemeli eemeli/yaml

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.