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Δ / VULNERABILITY RECORD

CVE-2026-2443.

Source-reported disclosure and enrichment record.

SEVERITY / CVSSMEDIUM / 5.3No severity score in this snapshot.
EXPLOITATION STATUSNot listed in the cached KEV catalogThis does not establish absence of exploitation.
RECORD STATUSMicrosoft vendor recordModified Oct 02, 2026

Disclosure summary

Libsoup: out-of-bounds read in libsoup handle_partial_get() leading to heap information disclosure

Source-reported weakness categories

CWE-125

Source-specific records & product guidance

Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.

Microsoft Security Updates (CVRF) · 2026-Feb

Open original source · Updated Oct 02, 2026

Libsoup: out-of-bounds read in libsoup handle_partial_get() leading to heap information disclosure

Maximum of vendor-reported product scores; products and fixed builds are associations, not a universal affected-version statement.

Microsoft maximum product score: 5.3

VendorProduct / associationVersion / bounds
Microsoft update guideazl3 libsoup 3.4.4-11 on Azure Linux 3.0 (MSRC status code 3)
Microsoft update guidecbl2 libsoup 3.0.4-10 on CBL Mariner 2.0 (MSRC status code 3)
Microsoft update guidecbl2 libsoup 3.0.4-12 on CBL Mariner 2.0 (MSRC status code 3)
Microsoft update guideazl3 libsoup 3.4.4-14 on Azure Linux 3.0 (MSRC status code 3)
Microsoft update guidecbl2 libsoup 3.0.4-13 on CBL-Mariner 2.0 (MSRC status code 3)
Microsoft update guideazl3 libsoup 3.4.4-12 on Azure Linux 3.0 (MSRC status code 3)
Microsoft update guidecbl2 libsoup 3.0.4-13 on CBL Mariner 2.0 (MSRC status code 3)

Vendor remediation references

  • CBL-Mariner Releases · build 3.4.4-14 · product IDs 21112-17084
  • Vendor guidance · product IDs 21112-17084
  • Release Notes · build 3.0.4-14 · product IDs 21115-21692
  • Vendor guidance · product IDs 21115-21692
  • CBL-Mariner Releases · build 3.4.4-13 · product IDs 20958-17084
  • Vendor guidance · product IDs 20958-17084
  • CBL-Mariner Releases · build 3.0.4-14 · product IDs 21115-17086
  • Vendor guidance · product IDs 21115-17086

Original records & references

PUBLISHED 2026-02-20T23:27:43-05:00
MODIFIED 2026-10-02T22:04:42-04:00
INGESTED 2026-10-08T12:45:17-04:00