CVE & CISA-KEV Catalog

CVE-2026-1536

MEDIUM
5.8
CVSS v3
NVD

Description

A flaw was found in libsoup. An attacker who can control the input for the Content-Disposition header can inject CRLF (Carriage Return Line Feed) sequences into the header value. These sequences are then interpreted verbatim when the HTTP request or response is constructed, allowing arbitrary HTTP headers to be injected. This vulnerability can lead to HTTP header injection or HTTP response splitting without requiring authentication or user interaction.

How to fix

Remediation Available
gir1.2-soup-3.0Ubuntu
Fixed in:3.0.7-0ubuntu1+esm7USN-8020-1
Fixed in:3.4.4-5ubuntu0.7USN-8020-1
Fixed in:3.6.5-4ubuntu0.2USN-8020-1
libsoup-3.0-0Ubuntu
Fixed in:3.0.7-0ubuntu1+esm7USN-8020-1
Fixed in:3.4.4-5ubuntu0.7USN-8020-1
Fixed in:3.6.5-4ubuntu0.2USN-8020-1
libsoup-3.0-commonUbuntu
Fixed in:3.0.7-0ubuntu1+esm7USN-8020-1
Fixed in:3.4.4-5ubuntu0.7USN-8020-1
Fixed in:3.6.5-4ubuntu0.2USN-8020-1
libsoup-3.0-devUbuntu
Fixed in:3.0.7-0ubuntu1+esm7USN-8020-1
Fixed in:3.4.4-5ubuntu0.7USN-8020-1
Fixed in:3.6.5-4ubuntu0.2USN-8020-1
libsoup-3.0-docUbuntu
Fixed in:3.0.7-0ubuntu1+esm7USN-8020-1
Fixed in:3.4.4-5ubuntu0.7USN-8020-1
Fixed in:3.6.5-4ubuntu0.2USN-8020-1
libsoup-3.0-testsUbuntu
Fixed in:3.0.7-0ubuntu1+esm7USN-8020-1
Fixed in:3.4.4-5ubuntu0.7USN-8020-1
Fixed in:3.6.5-4ubuntu0.2USN-8020-1
libsoup3Ubuntu
Fixed in:3.0.7-0ubuntu1+esm7USN-8020-1
Fixed in:3.4.4-5ubuntu0.7USN-8020-1
Fixed in:3.6.5-4ubuntu0.2USN-8020-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeChanged

Impact

ConfidentialityNone
IntegrityLow
AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

Exploit Intelligence

0.30%probability of exploitation in 30 days
22ndpercentile

Low risk: more likely to be exploited than 22% of all known CVEs.

References

Related Vulnerabilities

Other CWE-93 vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2025-61884High7.598%KEV + Ransom-
CVE-2022-0666High7.544%-Fix
CVE-2016-3115Medium6.437%-Fix
CVE-2024-20337High8.230%-Fix
CVE-2021-39172High8.829%-Fix
CVE-2016-4975Medium6.120%-Fix
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CVE-2026-1536 severity badge

Markdown

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HTML

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-03-25.