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CVE-2025-12642: Inconsistent Interpretation of HTTP Requests

🗓️ 03 Nov 2025 00:00:00Reported by Rapid7Type 
rapid7
 rapid7
🔗 www.rapid7.com

lighttpd1.4.80 incorrectly merged trailer fields into headers after http request parsing. This behavior can be exploited to conduct HTTP Header Smuggling attacks. Successful exploitation may allow an attacker to: Bypass access control rules Inject...

Related
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2025-12642
3 Nov 202521:59
–circl
cnnvd
CNNVD
lighttpd 安全漏洞
3 Nov 202500:00
–cnnvd
cve
CVE
CVE-2025-12642
3 Nov 202519:36
–cve
cvelist
Cvelist
CVE-2025-12642 HTTP Header Smuggling via Trailer Merge
3 Nov 202519:36
–cvelist
debiancve
Debian CVE
CVE-2025-12642
3 Nov 202519:36
–debiancve
euvd
EUVD
EUVD-2025-37517
3 Nov 202521:34
–euvd
nvd
NVD
CVE-2025-12642
3 Nov 202520:17
–nvd
openvas
OpenVAS
Lighttpd 1.4.80 HTTP Request/Response Smuggling Vulnerability
4 Nov 202500:00
–openvas
osv
OSV
UBUNTU-CVE-2025-12642
3 Nov 202520:17
–osv
ptsecurity
Positive Technologies
PT-2025-44791
3 Nov 202500:00
–ptsecurity
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12 Nov 2025 00:00Current
CVSS 46.9
CVSS 3.19.1
EPSS0.00343
SSVC
0