An update for rest is now available for openEuler-24.03-LTS-SP3 Security Advisory openeuler-security@openeuler.org openEuler security committee openEuler-SA-2026-3975 Final 1.0 1.0 2026-09-20 Initial 2026-09-20 2026-09-20 openEuler SA Tool V1.0 2026-09-20 rest security update An update for rest is now available for openEuler-24.03-LTS-SP3 This library has been designed to make it easier to access web services that claim to be "RESTful". It comprises of two parts: the first aims to make it easier to make requests by providing a wrapper around libsoup, the second aids with XML parsing by wrapping libxml2. Security Fix(es): A flaw was found in librest. The PKCE implementation for OAuth authorization uses the GRand function from the GLib API, a cryptographically insecure pseudo-random number generator. Because the generated "code verifier" lacks sufficient cryptographic entropy, a malicious actor can reverse-engineer the pseudo-random number generator (PRNG) seed to predict or reconstruct the code verifier string, allowing an attacker to bypass PKCE protections and successfully impersonate the client during the OAuth 2.0 authorization flow.(CVE-2026-16615) An update for rest is now available for openEuler-24.03-LTS-SP3. openEuler Security has rated this update as having a security impact of medium. A Common Vunlnerability Scoring System(CVSS)base score,which gives a detailed severity rating, is available for each vulnerability from the CVElink(s) in the References section. Medium rest https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3975 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-16615 https://nvd.nist.gov/vuln/detail/CVE-2026-16615 openEuler-24.03-LTS-SP3 rest-0.9.1-6.oe2403sp3.aarch64.rpm rest-debuginfo-0.9.1-6.oe2403sp3.aarch64.rpm rest-debugsource-0.9.1-6.oe2403sp3.aarch64.rpm rest-demo-0.9.1-6.oe2403sp3.aarch64.rpm rest-devel-0.9.1-6.oe2403sp3.aarch64.rpm rest-0.9.1-6.oe2403sp3.src.rpm rest-0.9.1-6.oe2403sp3.x86_64.rpm rest-debuginfo-0.9.1-6.oe2403sp3.x86_64.rpm rest-debugsource-0.9.1-6.oe2403sp3.x86_64.rpm rest-demo-0.9.1-6.oe2403sp3.x86_64.rpm rest-devel-0.9.1-6.oe2403sp3.x86_64.rpm rest-help-0.9.1-6.oe2403sp3.noarch.rpm A flaw was found in librest. The PKCE implementation for OAuth authorization uses the GRand function from the GLib API, a cryptographically insecure pseudo-random number generator. Because the generated "code verifier" lacks sufficient cryptographic entropy, a malicious actor can reverse-engineer the pseudo-random number generator (PRNG) seed to predict or reconstruct the code verifier string, allowing an attacker to bypass PKCE protections and successfully impersonate the client during the OAuth 2.0 authorization flow. 2026-09-20 CVE-2026-16615 openEuler-24.03-LTS-SP3 Medium 6.8 AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N rest security update 2026-09-20 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3975