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Vulnerability record · public intelligence
CVE-2026-1761
HIGH

Libsoup: stack-based buffer overflow in libsoup multipart response parsingmultipart http response

Published Feb 2, 2026 · Updated Nov 3, 2026

Severity · CVSSHIGH · Not scored
Known exploitationNot listed
EPSS / likelihood1.06%
QFinch risk scoreNot available

Original summary

Normalized public record · Updated Nov 3, 2026

Libsoup: stack-based buffer overflow in libsoup multipart response parsingmultipart http response

Publisher and source text is retained separately from QFinch interpretation.

QFinch assessment

A flaw was found in libsoup. This stack-based buffer overflow vulnerability occurs during the parsing of multipart HTTP responses due to an incorrect length calculation. A remote attacker can exploit this by sending a specially crafted multipart HTTP response, which can lead to memory corruption. This issue may result in application crashes or arbitrary code execution in applications that process untrusted server responses, and it does not require authentication or user interaction.

Evidence: public source records

Affected products

Affected scope reported by the available public evidence
Affected package, product or rangeFix status
Consult the referenced vendor advisory for affected versions.Consult source advisory

Matching a version is only one part of assessing exposure. QFinch has not assessed your environment on this public page.

Remediation

Apply the vendor-supported fixed release or mitigation, then verify the affected component is no longer reachable.

  1. Confirm the affected product and reachable code path exist in your environment.
  2. Apply the vendor-supported patch or mitigation from the primary advisory.
  3. Rescan the exact deployed revision and retain verification evidence.
Review primary references

Evidence coverage

FIRST-EPSSCVE-LIST-V5
SSVC priority
MEDIUM
Confidence
Not available
Aliases
None reported

Scores appear only when corresponding evidence exists. Missing data is never interpreted as zero risk.

Sources and record history

  1. RHSA-2026:1948 ↗
  2. RHSA-2026:2005 ↗
  3. RHSA-2026:2006 ↗
  4. RHSA-2026:2007 ↗
  5. RHSA-2026:2008 ↗
  6. RHSA-2026:2049 ↗
  7. RHSA-2026:2182 ↗
  8. RHSA-2026:2214 ↗
  9. RHSA-2026:2215 ↗
  10. RHSA-2026:2216 ↗
  11. RHSA-2026:2396 ↗
  12. RHSA-2026:2402 ↗

Record history

Published Feb 2, 2026 · Last refreshed Nov 3, 2026

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