Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-2708— Libsoup: libsoup: http request smuggling via duplicate content-length headers

Quick assessment

Affected
Red Hat Red Hat Enterprise Linux 10
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

libsoup是GNOME项目的一款GNOME的HTTP客户端/服务器库。 libsoup存在环境问题漏洞，该漏洞源于HTTP/1标头解析逻辑存在请求夹带，soup_message_headers_append_common函数无条件追加标头值，未验证重复或冲突的Content-Length字段。

CVSS 3.7 · Low EPSS 0.40% · P32
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-2708

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Libsoup: libsoup: http request smuggling via duplicate content-length headers
Source: CVE Program / CVE List V5
Vulnerability Description
A request smuggling vulnerability exists in libsoup's HTTP/1 header parsing logic. The soup_message_headers_append_common() function in libsoup/soup-message-headers.c unconditionally appends each header value without validating for duplicate or conflicting Content-Length fields. This allows an attacker to send HTTP requests containing multiple Content-Length headers with differing values.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
HTTP请求的解释不一致性(HTTP请求私运)
Source: CVE Program / CVE List V5
Vulnerability Title
libsoup 环境问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
libsoup是GNOME项目的一款GNOME的HTTP客户端/服务器库。 libsoup存在环境问题漏洞，该漏洞源于HTTP/1标头解析逻辑存在请求夹带，soup_message_headers_append_common函数无条件追加标头值，未验证重复或冲突的Content-Length字段。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Red Hat Red Hat Enterprise Linux 10 - cpe:/o:redhat:enterprise_linux:10
Red Hat Red Hat Enterprise Linux 6 - cpe:/o:redhat:enterprise_linux:6
Red Hat Red Hat Enterprise Linux 7 - cpe:/o:redhat:enterprise_linux:7
Red Hat Red Hat Enterprise Linux 8 - cpe:/o:redhat:enterprise_linux:8
Red Hat Red Hat Enterprise Linux 9 - cpe:/o:redhat:enterprise_linux:9

II. Public POCs for CVE-2026-2708

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-2708

请登录查看更多情报信息。

Same Patch Batch · Red Hat · 2026-04-23 · 6 CVEs total

CVE-2026-34003 7.8 HIGH Xorg: xwayland: x.org x server: information exposure and denial of service via out-of-boun
CVE-2026-34001 7.8 HIGH Xorg: xwayland: x.org x server: use-after-free vulnerability leads to server crash and pot
CVE-2026-33999 7.8 HIGH Xorg: xwayland: x.org x server: denial of service via integer underflow in xkb compatibili
CVE-2026-6732 6.5 MEDIUM Libxml2: libxml2: denial of service via crafted xsd-validated document
CVE-2025-66286 4.7 MEDIUM Webkitgtk: authorization bypass through webpage::send-request signal handler

IV. Related Vulnerabilities

Same product: Red Hat Enterprise Linux 10
Same vendor: Red Hat
Same weakness: CWE-444

V. Comments for CVE-2026-2708

No comments yet

Leave a comment