CVE-2026-3632

mediumpriority · track · 22EPSS 0.004 · 29 %ileDEEURUUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
0.36% (29th) EPSS
CVSS 5.5 · medium
Is it mine?
27 products
Check your exposure
Who says so?
4 sources
cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-23

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.

01

cvss

Technical severity, 0–10. One row per scoring source.

5.5
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 3.9–5.5

v3.15.5mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:Lprimary · NVD / NIST USexploitability 2.1 · impact 3.4
v3.15.5mediumAV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:Lsecondary · FSTEC (BDU) RU
v3.13.9lowCVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:Lsecondary · ENISA EU
v3.13.9lowCVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:Lsecondary · secalert@redhat.com USexploitability 0.5 · impact 3.4
v3.15.1mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L/E:Usecondary · CVSS-BT (t0sche)
02

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS
03

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-1286USCWE-1286US
04

affected products (27)

Products and version ranges known to be affected.

showing 20 of 27
05

advisories (1)

Vendor and ecosystem advisories describing this.

  • WID-SEC-W-2026-1007IBM App Connect Enterprise: Mehrere SchwachstellenDeutsch2026-04-07csaf · cert_bundDE

    Ein Angreifer kann mehrere Schwachstellen in IBM App Connect Enterprise ausnutzen, um Sicherheitsvorkehrungen zu umgehen, um einen Denial of Service Angriff durchzuführen, um Informationen offenzulegen, um Dateien zu manipulieren, um einen Cross-Site Scripting Angriff durchzuführen, um einen SQL-Injection Angriff durchzuführen, und um beliebigen Programmcode auszuführen.

06

also known as (4)

Other names and identifiers for this entity.

07

sources

Which sources assert this record, and when.

cnnvdenisa_euvdfstec_bducert_bundNVDCVE.orgMITRE
published 2026-03-17modified 2026-06-17
08

references (9)

External citations — patches, advisories, analysis.

scry

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