Red Hat Security Advisory: libsoup security update
The libsoup packages provide an HTTP client and server library for GNOME. Security Fix(es): * libsoup: Signed to Unsigned Conversion Error Leading to Stack-Based Buffer Overflow in libsoup NTLM Authentication (CVE-2026-0719) * libsoup: Stack-Based Buffer Overflow in libsoup Multipart Response Parsingmultipart HTTP response (CVE-2026-1761) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
AI Analysis
Technical Summary
The libsoup library used in Red Hat Enterprise Linux 8.4 contains two stack-based buffer overflow vulnerabilities. CVE-2026-0719 arises from a signed to unsigned conversion error in the NTLM authentication code path, potentially leading to memory corruption. CVE-2026-1761 involves a stack-based buffer overflow triggered during multipart HTTP response parsing. Both vulnerabilities could allow an attacker to cause a denial of service or potentially execute arbitrary code if exploited. Red Hat has issued security updates (RHSA-2026:2402) that fix these vulnerabilities in libsoup version 2.62.3-2.el8_4.8 for the affected Red Hat Enterprise Linux 8.4 variants.
Potential Impact
Successful exploitation of these vulnerabilities could lead to stack-based buffer overflows, which may result in application crashes or potentially arbitrary code execution within the context of the vulnerable libsoup library. This impacts applications relying on libsoup for HTTP client or server functionality, particularly those using NTLM authentication or processing multipart HTTP responses. There are no known exploits in the wild at this time.
Mitigation Recommendations
Red Hat has released security updates fixing these vulnerabilities in libsoup version 2.62.3-2.el8_4.8 for Red Hat Enterprise Linux 8.4 Advanced Update Support and Extended Update Support variants. Users should apply the official Red Hat security update RHSA-2026:2402 promptly to remediate these issues. For detailed update instructions, refer to https://access.redhat.com/articles/11258. No additional mitigations are specified by the vendor.
Red Hat Security Advisory: libsoup security update
Description
The libsoup packages provide an HTTP client and server library for GNOME. Security Fix(es): * libsoup: Signed to Unsigned Conversion Error Leading to Stack-Based Buffer Overflow in libsoup NTLM Authentication (CVE-2026-0719) * libsoup: Stack-Based Buffer Overflow in libsoup Multipart Response Parsingmultipart HTTP response (CVE-2026-1761) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The libsoup library used in Red Hat Enterprise Linux 8.4 contains two stack-based buffer overflow vulnerabilities. CVE-2026-0719 arises from a signed to unsigned conversion error in the NTLM authentication code path, potentially leading to memory corruption. CVE-2026-1761 involves a stack-based buffer overflow triggered during multipart HTTP response parsing. Both vulnerabilities could allow an attacker to cause a denial of service or potentially execute arbitrary code if exploited. Red Hat has issued security updates (RHSA-2026:2402) that fix these vulnerabilities in libsoup version 2.62.3-2.el8_4.8 for the affected Red Hat Enterprise Linux 8.4 variants.
Potential Impact
Successful exploitation of these vulnerabilities could lead to stack-based buffer overflows, which may result in application crashes or potentially arbitrary code execution within the context of the vulnerable libsoup library. This impacts applications relying on libsoup for HTTP client or server functionality, particularly those using NTLM authentication or processing multipart HTTP responses. There are no known exploits in the wild at this time.
Mitigation Recommendations
Red Hat has released security updates fixing these vulnerabilities in libsoup version 2.62.3-2.el8_4.8 for Red Hat Enterprise Linux 8.4 Advanced Update Support and Extended Update Support variants. Users should apply the official Red Hat security update RHSA-2026:2402 promptly to remediate these issues. For detailed update instructions, refer to https://access.redhat.com/articles/11258. No additional mitigations are specified by the vendor.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:2402
- Cve Count
- 2
- Additional Cves
- ["CVE-2026-1761"]
Threat ID: 6a27e99e8dd33fbd8516c54b
Added to database: 06/09/2026, 10:23:26 UTC
Last enriched: 06/25/2026, 23:29:12 UTC
Last updated: 09/10/2026, 19:36:52 UTC
Views: 36
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.