high7.4
CVE-2021-32723
Regular Expression Denial of Service (ReDoS) in Prism
Impact
Some languages before 1.24.0 are vulnerable to Regular Expression Denial of Service (ReDoS). ### Impact 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. Do not use the following languages to highlight untrusted text. - ASCIIDoc - ERB Other languages are __not__ affected and can be used to highlight untrusted text. ### Patches This problem has been fixed in Prism v1.24. ### References - PrismJS/prism#2774 - PrismJS/prism#2688
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | prismjs | < 1.24.0 | 1.24.0 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Prismjs | Prism | before 1.24.0 |
| Oracle | Application Express | before 21.1.4 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/PrismJS/prism/pull/2688
- https://github.com/PrismJS/prism/pull/2774
- https://github.com/PrismJS/prism/security/advisories/GHSA-gj77-59wh-66hg
- https://www.oracle.com/security-alerts/cpujan2022.html
- https://github.com/advisories/GHSA-gj77-59wh-66hg
- https://github.com/PrismJS/prism/commit/d85e30da6755fdbe7f8559f8e75d122297167018
- https://nvd.nist.gov/vuln/detail/CVE-2021-32723