VulnSocial

CVE-2026-3632Disclosure(gnome / enterprise_linux)

LOWCVSS 5.5 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

A flaw was found in libsoup, a library used by applications to send network requests. This vulnerability occurs because libsoup does not properly validate hostnames, allowing special characters to be injected into HTTP headers. A remote attacker could exploit this to perform HTTP smuggling, where they can send hidden, malicious requests alongside legitimate ones. In certain situations, this could lead to Server-Side Request Forgery (SSRF), enabling an attacker to force the server to make unauthorized requests to other internal or external systems. The impact is low, as SoupServer is not actually used in internet infrastructure.

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0.5/ 10 priority

Sources & remediation

Exploit / PoC references
Vendor / third-party advisories
Weakness type (CWE)
CWE-1286

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

NONE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • enterprise_linux
  • libsoup

Threat summary

  • 4 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Technical details provided in 3 signals
  • Disclosure: 2 classified signals
  • General: 2 classified signals
  • Peaked 1d ago at 3 mentions (2026-03-17); latest day: 1
  • 4 total mentions across 2 days

Affected systems

Vendors
gnomeredhat
Products
enterprise_linuxlibsoup

6 versions affected across 2 products

Deep dive

Activity timeline4 mentions / 2d
01223Mentions · 2026-03-17: 3Mentions · 2026-03-23: 1Technical Details · 2026-03-17: 2Technical Details · 2026-03-23: 103-1703-23
Signal classification2 categories
Disclosure
250.0%
General
250.0%
Referenced assets4 URLs
Classification over time
DateTotalLabels
2026-03-173
Disclosure2General1
2026-03-231
General1
Full discourse4 posts
  • WindowsForum@windowsforum
    General

    😈 Small libsoup “hostname bug,” big chaos: inject headers, pull off HTTP smuggling, and maybe SSRF. Translation: your network stack isn’t as “safe” as it looks. https://windowsforum.com/threads/cve-2026-3632-libsoup-hostname-bug-http-smuggling-and-ssrf-risk.406521/ #Cve20263632 #LibsoupSecurity #HttpSmuggling #SsrfMitigation https://t.co/YIGA6muEKE

    Post summary

    The tweet warns that libsoup’s hostname bug could lead to header injection, HTTP smuggling, and possibly SSRF, but it does not provide evidence of active exploitation, a PoC, or a patch.

    000003
    1.0K followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-3632 A flaw was found in libsoup, a library used by applications to send network requests. This vulnerability occurs because libsoup does not properly validate hostnames, al… https://www.cve.org/CVERecord?id=CVE-2026-3632

    Post summary

    This is a disclosure of a hostname validation flaw in libsoup, with no evidence of exploitation, PoC, or patch details provided.

    00000135
    56.8K followersView on X
  • CVEarity@CVEarity
    General

    ⚡ New CVE Alert: CVE-2026-3632 📊 Severity: 3.9 🚨 Risk Level: Low 🧩 Affects: Multiple / Unspecified Products Reference: https://nvd.nist.gov/vuln/detail/CVE-2026-3632 #CVE-2026-3632 #CVE #Low  #CyberSecurity #InfoSec https://t.co/Nv2hH5fgwp

    Post summary

    The tweet announces a low‑severity CVE with minimal details and does not provide technical or exploit information.

    0000036
    101 followersView on X
  • Vulmon Vulnerability Feed@VulmonFeeds
    Disclosure

    CVE-2026-3632 Hostname Validation Bypass in libsoup Enabling HTTP Smuggling Attacks https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-3632

    Post summary

    The text announces CVE-2026-3632 as a hostname validation bypass in libsoup that could facilitate HTTP smuggling attacks.

    0000060
    4.0K followersView on X
CPE platform detail6 entries

6 of 6 entries

PartVendorProductVersionTarget SWTarget HW
Appgnomelibsoup---
OSredhatenterprise_linux10.0--
OSredhatenterprise_linux6.0--
OSredhatenterprise_linux7.0--
OSredhatenterprise_linux8.0--
OSredhatenterprise_linux9.0--

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