Vulnerability in Postcss
CVE-2021-23368
The package postcss from 7.0.0 and before 8.2.10 are vulnerable to Regular Expression Denial of Service (ReDoS) during source map parsing.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.035 (89.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 89.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.035 · newest: 0.035 · change: 0.000
Affected products
- Postcss
- Postcss — versions 7.0.0, unspecified
Public proof-of-concept exploits
References
- snyk.io/vuln/SNYK-JS-POSTCSS-1090595 (Exploit, Patch, Third Party Advisory)
- snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1244795 (Exploit, Patch, Third Party Advisory)
- github.com/postcss/postcss/commit/b6f3e4d5a8d7504d553267f80384373af3a3dec5 (Patch, Third Party Advisory)
- github.com/postcss/postcss/commit/8682b1e4e328432ba692bed52326e84439cec9e4 (Patch, Third Party Advisory)
- lists.apache.org/thread.html/r16e295b4f02d81b79981237d602cb0b9e59709bafaa73ac98… (mailing-list)
- lists.apache.org/thread.html/r8def971a66cf3e375178fbee752e1b04a812a047cc478ad29… (mailing-list)
- lists.apache.org/thread.html/r00158f5d770d75d0655c5eef1bdbc6150531606c8f8bcb778… (mailing-list)
- lists.apache.org/thread.html/r5acd89f3827ad9a9cad6d24ed93e377f7114867cd98cfba61… (mailing-list)
- lists.apache.org/thread.html/rad5af2044afb51668b1008b389ac815a28ecea9eb75ae2cab… (mailing-list)
- lists.apache.org/thread.html/r49afb49b38748897211b1f89c3a64dc27f9049474322b0571… (mailing-list)
Frequently asked questions
- What is CVE-2021-23368?
- CVE-2021-23368 is a medium-severity vulnerability in Postcss. CVSS score: 5.3/10. Published 2021-04-12.
- How severe is CVE-2021-23368?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2021-23368 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.