CVE-2021-32640
ReDoS in Sec-Websocket-Protocol header
02 Description
ReDoS in Sec-Websocket-Protocol header
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 2.82% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 86.3% of scored records. A rank, not a probability.
- NVD base score
- 5.3 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Low. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2021-05-25 18:25Z5 YR AGO
- Last updated
- 2024-08-03 23:25Z2 YR AGO
- Reserved
- 2021-05-12
- Assigning CNA
- GitHub_M
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 5.3)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- Weaknesses
- CWE-400Uncontrolled Resource ConsumptionClass
- Data version
- 5.1
- Document digest
- 2248ad962c150a96e6c50601c43594a45db2c26b68468565c6d52a8f4b6d179b
05 Affected products
06 References
- github.comhttps://github.com/websockets/ws/security/advisories/GHSA-6fc8-4gx4-v693
- github.comhttps://github.com/websockets/ws/commit/00c425ec77993773d823f018f64a5c44e17023ff
- lists.apache.org[tinkerpop-commits] 20210701 [tinkerpop] 01/03: Bumped ws to 6.2.2 to address CVE-2021-32640 CTRhttps://lists.apache.org/thread.html/rdfa7b6253c4d6271e31566ecd5f30b7ce1b8fb2c89d52b8c4e0f4e30%40%3Ccommits.tinkerpop.apache.org%3E
- security.netapp.comhttps://security.netapp.com/advisory/ntap-20210706-0005/
07 Fixed in
Debian 12
- node-ws Fixed in 7.4.2+~cs18.0.8-2
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- node-ws Fixed in 7.4.2+~cs18.0.8-2
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- node-ws Fixed in 7.4.2+~cs18.0.8-2
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- node-ws No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- node-ws No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 20.04 LTS
- node-ws No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 22.04 LTS
- node-ws No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.