CVE-2021-32723: oracle application_express Uncontrolled Resource Consumption
Vulnerability summary
CVE-2021-32723 is a high (CVSS 7.4) Uncontrolled Resource Consumption vulnerability in oracle application_express. EPSS estimates a 1.42% chance of exploitation in the next 30 days, higher than 72.4% of scored vulnerabilities.
Timeline
- 28-06-2021PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
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 metrics
5 scores · 4 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HDiffers
- OSV · NpmEcosystem advisory · calculated7.4HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:H
- NVDNIST6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HDiffers
EPSS trend
Probability
1.42%
Chance of exploitation in the next 30 days
Percentile
72%
Versus all other CVEs
30-day change
-0.01 pp
From 1.43% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Npm1 product
- prismjs< 1.24.0
Oracle1 product
- application_express< 21.1.4
Prismjs1 product
- prism< 1.24 | < 1.24.0
Ubuntu1 product
- node-prismjsAll versions (No fix recorded)
4 vendors · 4 products
References
9 links- github.com/PrismJS/prism/security/advisories/GHSA-gj77-59wh-66hgX Refsource CONFIRMREPORTWEBThird Party Advisory
- github.com/PrismJS/prismPACKAGE