CVE-2022-32205A malicious server can serve excessive amounts of `Set-Cookie:` headers in a HTTP response to curl and curl < 7.84.0 stores all of them. A…
- 4.3MediumCVSS base score
- 31.5%Exploitation in 30 daysEPSS · top 1.7% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- YesPublic exploitsa reference or SSVC says so
Description
A malicious server can serve excessive amounts of `Set-Cookie:` headers in a HTTP response to curl and curl < 7.84.0 stores all of them. A sufficiently large amount of (big) cookies make subsequent HTTP requests to this, or other servers to which the cookies match, create requests that become larger than the threshold that curl uses internally to avoid sending crazy large requests (1048576 bytes) and instead returns an error.This denial state might remain for as long as the same cookies are kept, match and haven't expired. Due to cookie matching rules, a server on `foo.example.com` can set cookies that also would match for `bar.example.com`, making it it possible for a "sister server" to effectively cause a denial of service for a sibling site on the same second level domain using this method.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. CISA's SSVC rates its exploitation: a proof of concept is public.
Timeline
ID reserved
By hackerone
- 36 days later
· 36 days later
Published
- 4 years later
· 4 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 |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | Medium4.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L |
| NVDNVD · Modified | 3.1 | Medium4.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L |
- EPSS (exploitation in 30 days)
- 31.5% · top 1.7% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: poc · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.3.
Affected products
https://github.com/curl/curl
- affected Fixed in 7.84.0
References
References14
- https://hackerone.com/reports/1569946 (opens in a new tab)x_transferred
- FEDORA-2022-1b3d7f6973 (opens in a new tab)vendor-advisoryx_transferred
- DSA-5197 (opens in a new tab)vendor-advisoryx_transferred
- https://security.netapp.com/advisory/ntap-20220915-0003/ (opens in a new tab)x_transferred
- https://support.apple.com/kb/HT213488 (opens in a new tab)x_transferred
- 20221030 APPLE-SA-2022-10-27-5 Additional information for APPLE-SA-2022-10-24-2 macOS Ventura 13 (opens in a new tab)mailing-listx_transferred
- 20221030 APPLE-SA-2022-10-24-2 macOS Ventura 13 (opens in a new tab)mailing-listx_transferred
- https://cert-portal.siemens.com/productcert/pdf/ssa-333517.pdf (opens in a new tab)x_transferred
- GLSA-202212-01 (opens in a new tab)vendor-advisoryx_transferred
- https://cert-portal.siemens.com/productcert/html/ssa-333517.html (opens in a new tab)
- https://cert-portal.siemens.com/productcert/html/ssa-419740.html (opens in a new tab)
- https://cert-portal.siemens.com/productcert/html/ssa-558014.html (opens in a new tab)
- https://cert-portal.siemens.com/productcert/html/ssa-942865.html (opens in a new tab)
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html (opens in a new tab)
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-2022-53411 (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-2022-32205)Record last updated .