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CVE-2021-32723 PUBLISHED

Prism is a syntax highlighting library. Some languages before 1.24.0 are vulnerable to Regular Expression Denial of Service (ReDoS). When Prism is used to highlight untrusted (user-given) text, an attacker can craft a string that will take a very very long time to highlight. This problem has been fixed in Prism v1.24. As a workaround, do not use ASCIIDoc or ERB to highlight untrusted text. Other languages are not affected and can be used to highlight untrusted text.

EPSS 0.37% · 58.8th percentile

Risk Scores

EPSS Score
0.37%
58.8th percentile

Affected Products

VendorProductVersions
Ubuntu:25.10node-prismjs1.30.0+dfsg+~1.26.5-1, 0, 1.29.0+dfsg+~1.26.0-1
Ubuntu:24.04:LTSnode-prismjs0, 1.29.0+dfsg+~1.26.0-1
Ubuntu:22.04:LTSnode-prismjs1.27.0+dfsg+~1.26.0-1, 0, 1.23.0+dfsg-1
Ubuntu:20.04:LTSnode-prismjs0, 1.11.0+dfsg-3, 1.11.0+dfsg-2

Timeline

References

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