VDB

CVE-2021-23368

CVE-2021-23368 PUBLISHED CVSS 5.3 MEDIUM

Regular Expression Denial of Service (ReDoS)

Reported by snyk · Published April 12, 2021

postcss is fixed in 8.2.10 and 7.0.36 (npm)

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.

Fixed versions

Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.

PackageEcosystemFixed in
postcssnpm8.2.10, 7.0.36
postcsspostcss8.2.10, 7.0.36
postcssn/aunspecified, 8.2.10

Risk scores

CVSS 3.1
5.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Affected products

VendorProductVersions
n/apostcss7.0.0, unspecified
n/apostcss7.0.0, *
npmpostcss7.0.0, 8.0.0

Timeline

  • Apr 12, 2021 CVE Published
  • Apr 14, 2021 EPSS Score (30 in total, the first dated here)
  • Feb 8, 2024 PoC Published
  • Feb 19, 2024 CVE Updated
  • Mar 10, 2026 Security Advisory (2 in total, the first dated here)
  • Jul 23, 2026 Distribution Patch
  • Aug 25, 2026 Coalition ESS Score

Query this with the API

The same record, from the CLI:

vulnetix vdb vuln CVE-2021-23368
vulnetix vdb fixes CVE-2021-23368

Or with curl, using the org id and key from your account page:

curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
  "https://api.vdb.vulnetix.com/v2/vuln/CVE-2021-23368/fixes/registry"

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References

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