CVE-2020-8201
Node.js < 12.18.4 and < 14.11 can be exploited to perform HTTP desync attacks and deliver malicious payloads to unsuspecting users. The…
- 7.4HighCVSS base score
- 5.3%Exploitation in 30 daysEPSS · top 7.3% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
Node.js < 12.18.4 and < 14.11 can be exploited to perform HTTP desync attacks and deliver malicious payloads to unsuspecting users. The payloads can be crafted by an attacker to hijack user sessions, poison cookies, perform clickjacking, and a multitude of other attacks depending on the architecture of the underlying system. The attack was possible due to a bug in processing of carrier-return symbols in the HTTP header names.
Timeline
ID reserved
By hackerone
- 8 months later
· 8 months later
Published
- 5 years later
· 5 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | High7.4 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N |
- EPSS (exploitation in 30 days)
- 5.3% · top 7.3% of all CVEs (11 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.4.
Affected products
References
References6
- https://nodejs.org/en/blog/vulnerability/september-2020-security-releases/ (opens in a new tab)x_refsource_MISCx_transferred
- https://hackerone.com/reports/922597 (opens in a new tab)x_refsource_MISCx_transferred
- openSUSE-SU-2020:1616 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- https://security.netapp.com/advisory/ntap-20201009-0004/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- FEDORA-2020-43d5a372fc (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- GLSA-202101-07 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2020-29078 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2020-8201)Record last updated .