cve.bz

CVE-2017-18640

7.5 highEPSS 27%

High (7.5). EPSS 27% chance of exploitation in the next 30 days. Fixed in org.yaml:snakeyaml 1.26.

The Alias feature in SnakeYAML before 1.26 allows entity expansion during a load operation, a related issue to CVE-2003-1564.

Severity

CVSS 3.1

7.5 high
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
27% chance of exploitation in the next 30 days; higher than 98% of CVEs (scores of 2026-10-31)
CWE
CWE-776
Published
Modified
Record from
the NVD, synced

Affected

Packages (OSV)

AdvisoryEcosystemPackageAffectedFixed in
GHSA-rvwf-54qp-4r6vMavenorg.yaml:snakeyaml<1.261.26

References

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