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Oracle curl Important Fix for ELSA-2026

Linuxsecurity •LinuxSecurity Advisories • August 20, 2026

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[7.76.1-40.el9_8.5] - fix missing %patch macros for Patch46 and Patch47 [7.76.1-40.el9_8.4] - fix HTTP Negotiate connection reuse auth bypass (CVE-2026-1965) - fix OAuth2 bearer token leak via redirect and netrc (CVE-2026-3783) - tests: disable flaky test 1206 on x86_64 (FTP PORT timeout under valgrind) [7.76.1-40.3] - tests: disable flaky tests 3000, 3001 on i686 (stunnel startup race) [7.76.1-40.1] - fix SSH host key mismatch on type difference (CVE-2026-9547) - fix TLS/STARTTLS connection reuse vulnerability (CVE-2026-8286)

curl-7.76.1-40.el9_8.5.x86_64.rpm curl-minimal-7.76.1-40.el9_8.5.x86_64.rpm libcurl-7.76.1-40.el9_8.5.i686.rpm libcurl-7.76.1-40.el9_8.5.x86_64.rpm libcurl-devel-7.76.1-40.el9_8.5.i686.rpm libcurl-devel-7.76.1-40.el9_8.5.x86_64.rpm libcurl-minimal-7.76.1-40.el9_8.5.i686.rpm libcurl-minimal-7.76.1-40.el9_8.5.x86_64.rpm

curl-7.76.1-40.el9_8.5.aarch64.rpm curl-minimal-7.76.1-40.el9_8.5.aarch64.rpm libcurl-7.76.1-40.el9_8.5.aarch64.rpm libcurl-devel-7.76.1-40.el9_8.5.aarch64.rpm libcurl-minimal-7.76.1-40.el9_8.5.aarch64.rpm

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This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.

Multiple CVEs Addressed in Oracle Linux curl Updates Oracle has released important updates for its curl software, addressing multiple vulnerabilities. The updates include fixes for CVE-2026-1965 and CVE-2026-3783, which involve HTTP Negotiate connection reuse and OAuth2 bearer token leaks, respectively. Additionally, CVE-2026-9547 and CVE-2026-8286 are also addressed, targeting SSH host key mismatches and TLS connection reuse vulnerabilities. The vulnerabilities affect various versions of curl and libcurl across different architectures, including x86_64 and aarch64. System administrators are advised to apply these updates promptly to mitigate potential security risks. The updates were published on 2026-08-20, with previous CVEs disclosed earlier in 2026. These vulnerabilities could lead to unauthorized access and data leakage if not patched. 4 sources 73

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Oracle curl Important Fix for ELSA-2026

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Extracted Entities

CVEs (4)

CWE Weaknesses (2)

Platforms (1)