OPENSUSE-SU-2026:11090-1

Vulnerability from csaf_opensuse - Published: 2026-06-22 00:00 - Updated: 2026-06-22 00:00
Summary
haproxy-3.4.0+git31.fc300e9f2-1.1 on GA media
Severity
Moderate
Notes
Title of the patch: haproxy-3.4.0+git31.fc300e9f2-1.1 on GA media
Description of the patch: These are all security issues fixed in the haproxy-3.4.0+git31.fc300e9f2-1.1 package on the GA media of openSUSE Tumbleweed.
Patchnames: openSUSE-Tumbleweed-2026-11090
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-2026-55203
5.6 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Affected products
Product Identifier Version Remediation
Unresolved product id: openSUSE Tumbleweed:haproxy-3.4.0+git31.fc300e9f2-1.1.aarch64 —
Vendor Fix
Unresolved product id: openSUSE Tumbleweed:haproxy-3.4.0+git31.fc300e9f2-1.1.ppc64le —
Vendor Fix
Unresolved product id: openSUSE Tumbleweed:haproxy-3.4.0+git31.fc300e9f2-1.1.s390x —
Vendor Fix
Unresolved product id: openSUSE Tumbleweed:haproxy-3.4.0+git31.fc300e9f2-1.1.x86_64 —
Vendor Fix
Threats
Impact important
CVE-2026-55204
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
Product Identifier Version Remediation
Unresolved product id: openSUSE Tumbleweed:haproxy-3.4.0+git31.fc300e9f2-1.1.aarch64 —
Vendor Fix
Unresolved product id: openSUSE Tumbleweed:haproxy-3.4.0+git31.fc300e9f2-1.1.ppc64le —
Vendor Fix
Unresolved product id: openSUSE Tumbleweed:haproxy-3.4.0+git31.fc300e9f2-1.1.s390x —
Vendor Fix
Unresolved product id: openSUSE Tumbleweed:haproxy-3.4.0+git31.fc300e9f2-1.1.x86_64 —
Vendor Fix
Threats
Impact important
References
To clipboard 

{
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      "text": "moderate"
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    "distribution": {
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        "title": "Patchnames"
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      "ids": [
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          "text": "https://www.suse.com/security/cve/CVE-2026-55203"
        }
      ],
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        {
          "category": "general",
          "text": "HAProxy through 3.4.0, fixed in commit 5985276, contains an integer overflow vulnerability in the fcgi_conn structure\u0027s drl field that allows buffer misparse as new FCGI record headers. When contentLength is 65535 and paddingLength is 1 or more, the drl field wraps to 0, causing incorrect record consumption and allowing malicious FastCGI backends to desynchronize the FCGI framing parser, potentially causing request routing errors, response smuggling, or memory safety issues.",
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          "openSUSE Tumbleweed:haproxy-3.4.0+git31.fc300e9f2-1.1.s390x",
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        ]
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          ]
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      ],
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            "baseSeverity": "MEDIUM",
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          ]
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        {
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          "text": "HAProxy through  3.4.0, fixed in commit 9a6d1fe, contains a null pointer dereference vulnerability in hpack_dht_insert() within src/hpack-tbl.c that fails to validate the return value of hpack_dht_defrag() when the memory pool is exhausted. An attacker can trigger HPACK dynamic table insertions under memory pressure to dereference a NULL pointer and crash HAProxy worker processes, causing denial of service.",
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        }
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            "openSUSE Tumbleweed:haproxy-3.4.0+git31.fc300e9f2-1.1.x86_64"
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            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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            "openSUSE Tumbleweed:haproxy-3.4.0+git31.fc300e9f2-1.1.ppc64le",
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          "date": "2026-06-22T00:00:00Z",
          "details": "important"
        }
      ],
      "title": "CVE-2026-55204"
    }
  ]
}


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Tags
Taxonomy of the tags.





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

Author Source Type Date Other

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.


Detection rules are retrieved from Rulezet.