SUSE-SU-2026:22920-1

Vulnerability from csaf_suse - Published: 2026-07-24 08:10 - Updated: 2026-09-20 18:40
Summary
Security update for libsoup
Severity
Moderate
Notes
Title of the patch: Security update for libsoup
Description of the patch: This update for libsoup fixes the following issues: - Incomplete fix for CVE-2026-12478: out-of-bounds read in the `process_frame()` function of `SoupWebSocketConnection` (bsc#1271401).
Patchnames: SUSE-SLE-Micro-6.0-812
Terms of use: CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
CVE-2026-0716
6.5 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:L
Affected products
Product Identifier Version Remediation
Unresolved product id: SUSE Linux Micro 6.0:libsoup-3_0-0-0:3.4.2-17.1.aarch64 —
Vendor Fix
Unresolved product id: SUSE Linux Micro 6.0:libsoup-3_0-0-0:3.4.2-17.1.s390x —
Vendor Fix
Unresolved product id: SUSE Linux Micro 6.0:libsoup-3_0-0-0:3.4.2-17.1.x86_64 —
Vendor Fix
Threats
Impact moderate
CVE-2026-12478
4.8 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L
Affected products
Recommended 3 products, the same list as for CVE-2026-0716
Threats
Impact moderate
References
To clipboard 

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        }
      ],
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          "text": "A flaw was found in libsoup\u0027s WebSocket frame processing when handling incoming messages. If a non-default configuration is used where the maximum incoming payload size is unset, the library may read memory outside the intended bounds. This can cause unintended memory exposure or a crash. Applications using libsoup\u0027s WebSocket support with this configuration may be impacted.",
          "title": "CVE description"
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          "product_ids": [
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          "text": "The fix for CVE-2026-0716 (commit 6ff7ef0, libsoup 3.6.6) placed the integer overflow guard inside the if (masked) block, leaving unmasked server-to-client frames unprotected. A malicious WebSocket server can send a crafted unmasked frame with a payload length near UINT64_MAX to trigger an OOB read in a libsoup-based client when max_incoming_payload_size is set to  0.",
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}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.