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CVE-2026-21428

🗓️ 01 Jan 2026 18:15:00Reported by ubuntu.comType 
ubuntucve
 ubuntucve
🔗 ubuntu.com👁 17 Views

cpp-httplib prior to 0.30.0: write_headers permits CRLF header injection and SSRF via http/1.1 pipelining.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
avleonov
Information Security Automation
January Linux Patch Wednesday
24 Jan 202621:19
–avleonov
bdu_fstec
BDU FSTEC
cpp-httplib write_headers()
3 Jan 202600:00
–bdu_fstec
circl
Circl
CVE-2026-21428
1 Jan 202618:50
–circl
cnnvd
CNNVD
cpp-httplib injection vulnerability
1 Jan 202600:00
–cnnvd
cve
CVE
CVE-2026-21428
1 Jan 202617:54
–cve
cvelist
Cvelist
CVE-2026-21428 cpp-httplib has CRLF injection in http headers
1 Jan 202617:54
–cvelist
debiancve
Debian CVE
CVE-2026-21428
1 Jan 202617:54
–debiancve
euvd
EUVD
EUVD-2026-0026
1 Jan 202617:54
–euvd
fedora
Fedora
[SECURITY] Fedora 42 Update: cpp-httplib-0.30.1-5.fc42
22 Jan 202601:15
–fedora
fedora
Fedora
[SECURITY] Fedora 43 Update: cpp-httplib-0.30.1-5.fc43
22 Jan 202601:08
–fedora
Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Ubuntu26.04allcpp-httplib0cpp-httplib_0_all.deb
Ubuntu22.04allcpp-httplib0cpp-httplib_0_all.deb
Ubuntu24.04allcpp-httplib0cpp-httplib_0_all.deb

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10 Jul 2026 19:29Current
7.2High risk
Vulners AI Score7.2
CVSS 3.17.5
CVSS 48.7
EPSS0.00404
SSVC
17