CVE-2021-32723
Regular Expression Denial of Service (ReDoS) in Prism
Vexday Risk Score
21Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 7.4EPSS 1.4%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
28 Jun 2021Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:H
Affected products
PrismJS · prismWant to know if your infrastructure is exposed to this?
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