Medium severity5.3NVD Advisory· Published Apr 12, 2021· Updated Jun 17, 2026
CVE-2021-23368
CVE-2021-23368
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
postcssnpm | >= 7.0.0, < 7.0.36 | 7.0.36 |
postcssnpm | >= 8.0.0, < 8.2.10 | 8.2.10 |
Affected products
2- postcss/postcssdescription
Patches
Vulnerability mechanics
References
19- github.com/postcss/postcss/commit/8682b1e4e328432ba692bed52326e84439cec9e4nvdPatchThird Party AdvisoryWEB
- github.com/postcss/postcss/commit/b6f3e4d5a8d7504d553267f80384373af3a3dec5nvdPatchThird Party AdvisoryWEB
- snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1244795nvdExploitPatchThird Party AdvisoryWEB
- snyk.io/vuln/SNYK-JS-POSTCSS-1090595nvdExploitPatchThird Party AdvisoryWEB
- github.com/advisories/GHSA-hwj9-h5mp-3pm3ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2021-23368ghsaADVISORY
- github.com/postcss/postcss/commit/54cbf3c4847eb0fb1501b9d2337465439e849734ghsaWEB
- lists.apache.org/thread.html/r00158f5d770d75d0655c5eef1bdbc6150531606c8f8bcb778f0627be@%3Cdev.myfaces.apache.org%3EghsaWEB
- lists.apache.org/thread.html/r16e295b4f02d81b79981237d602cb0b9e59709bafaa73ac98be7cef1@%3Cdev.myfaces.apache.org%3EghsaWEB
- lists.apache.org/thread.html/r49afb49b38748897211b1f89c3a64dc27f9049474322b05715695aab@%3Cdev.myfaces.apache.org%3EghsaWEB
- lists.apache.org/thread.html/r5acd89f3827ad9a9cad6d24ed93e377f7114867cd98cfba616c6e013@%3Ccommits.myfaces.apache.org%3EghsaWEB
- lists.apache.org/thread.html/r8def971a66cf3e375178fbee752e1b04a812a047cc478ad292007e33@%3Cdev.myfaces.apache.org%3EghsaWEB
- lists.apache.org/thread.html/rad5af2044afb51668b1008b389ac815a28ecea9eb75ae2cab5a00ebb@%3Ccommits.myfaces.apache.org%3EghsaWEB
- lists.apache.org/thread.html/r00158f5d770d75d0655c5eef1bdbc6150531606c8f8bcb778f0627be%40%3Cdev.myfaces.apache.org%3Envd
- lists.apache.org/thread.html/r16e295b4f02d81b79981237d602cb0b9e59709bafaa73ac98be7cef1%40%3Cdev.myfaces.apache.org%3Envd
- lists.apache.org/thread.html/r49afb49b38748897211b1f89c3a64dc27f9049474322b05715695aab%40%3Cdev.myfaces.apache.org%3Envd
- lists.apache.org/thread.html/r5acd89f3827ad9a9cad6d24ed93e377f7114867cd98cfba616c6e013%40%3Ccommits.myfaces.apache.org%3Envd
- lists.apache.org/thread.html/r8def971a66cf3e375178fbee752e1b04a812a047cc478ad292007e33%40%3Cdev.myfaces.apache.org%3Envd
- lists.apache.org/thread.html/rad5af2044afb51668b1008b389ac815a28ecea9eb75ae2cab5a00ebb%40%3Ccommits.myfaces.apache.org%3Envd
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