{"id":"UBUNTU-CVE-2026-95818","details":"A stack-based buffer overflow in the dynamic loader (ld.so) of the GNU C Library (glibc) versions 2.14 through 2.44 allows a local attacker to crash or corrupt the memory of setuid/setgid (AT_SECURE) programs. When such a program's DT_RPATH or DT_RUNPATH begins with $ORIGIN and is followed by NUL or '/' the loader both reads past the end of the path buffer and writes past the end of a stack-allocated internal buffer. The corrupted loader stack can lead to a loader crash (denial of service) and limited disclosure of process memory.","modified":"2026-09-24T02:03:13.140278830Z","published":"2026-09-22T17:17:00Z","upstream":["CVE-2026-95818"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-95818"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-95818"},{"type":"REPORT","url":"https://sourceware.org/git/?p=glibc.git;a=blob;f=advisories/GLIBC-SA-2026-0023"},{"type":"REPORT","url":"https://sourceware.org/bugzilla/show_bug.cgi?id=34360"},{"type":"REPORT","url":"https://sourceware.org/git/?p=glibc.git;a=blob_plain;f=advisories/GLIBC-SA-2026-0023"}],"affected":[{"package":{"name":"eglibc","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/eglibc?arch=source&distro=esm-infra-legacy%2Ftrusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.17-93ubuntu4","2.18-0ubuntu1","2.18-0ubuntu2","2.18-0ubuntu4","2.18-0ubuntu5","2.18-0ubuntu6","2.18-0ubuntu7","2.19-0ubuntu2","2.19-0ubuntu3","2.19-0ubuntu4","2.19-0ubuntu5","2.19-0ubuntu6","2.19-0ubuntu6.1","2.19-0ubuntu6.3","2.19-0ubuntu6.4","2.19-0ubuntu6.5","2.19-0ubuntu6.6","2.19-0ubuntu6.7","2.19-0ubuntu6.8","2.19-0ubuntu6.9","2.19-0ubuntu6.10","2.19-0ubuntu6.11","2.19-0ubuntu6.13","2.19-0ubuntu6.14","2.19-0ubuntu6.15","2.19-0ubuntu6.15+esm1","2.19-0ubuntu6.15+esm2","2.19-0ubuntu6.15+esm3","2.19-0ubuntu6.15+esm4"],"ecosystem_specific":{"binaries":[{"binary_name":"eglibc-source","binary_version":"2.19-0ubuntu6.15+esm4"},{"binary_version":"2.19-0ubuntu6.15+esm4","binary_name":"libc-bin"},{"binary_name":"libc-dev-bin","binary_version":"2.19-0ubuntu6.15+esm4"},{"binary_name":"libc6","binary_version":"2.19-0ubuntu6.15+esm4"},{"binary_version":"2.19-0ubuntu6.15+esm4","binary_name":"libc6-amd64"},{"binary_name":"libc6-armel","binary_version":"2.19-0ubuntu6.15+esm4"},{"binary_name":"libc6-dev-amd64","binary_version":"2.19-0ubuntu6.15+esm4"},{"binary_name":"libc6-dev-armel","binary_version":"2.19-0ubuntu6.15+esm4"},{"binary_version":"2.19-0ubuntu6.15+esm4","binary_name":"libc6-dev-i386"},{"binary_name":"libc6-dev-x32","binary_version":"2.19-0ubuntu6.15+esm4"},{"binary_name":"libc6-i386","binary_version":"2.19-0ubuntu6.15+esm4"},{"binary_name":"libc6-pic","binary_version":"2.19-0ubuntu6.15+esm4"},{"binary_name":"libc6-prof","binary_version":"2.19-0ubuntu6.15+esm4"},{"binary_version":"2.19-0ubuntu6.15+esm4","binary_name":"libc6-x32"},{"binary_name":"multiarch-support","binary_version":"2.19-0ubuntu6.15+esm4"},{"binary_name":"nscd","binary_version":"2.19-0ubuntu6.15+esm4"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-95818.json"}},{"package":{"name":"glibc","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/glibc?arch=source&distro=esm-infra%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.21-0ubuntu4","2.21-0ubuntu5","2.21-0ubuntu6","2.23-0ubuntu1","2.23-0ubuntu2","2.23-0ubuntu3","2.23-0ubuntu4","2.23-0ubuntu5","2.23-0ubuntu6","2.23-0ubuntu7","2.23-0ubuntu9","2.23-0ubuntu10","2.23-0ubuntu11","2.23-0ubuntu11.2","2.23-0ubuntu11.3","2.23-0ubuntu11.3+esm1","2.23-0ubuntu11.3+esm2","2.23-0ubuntu11.3+esm3","2.23-0ubuntu11.3+esm5","2.23-0ubuntu11.3+esm6","2.23-0ubuntu11.3+esm7","2.23-0ubuntu11.3+esm8","2.23-0ubuntu11.3+esm9"],"ecosystem_specific":{"binaries":[{"binary_name":"glibc-source","binary_version":"2.23-0ubuntu11.3+esm9"},{"binary_name":"libc-bin","binary_version":"2.23-0ubuntu11.3+esm9"},{"binary_name":"libc-dev-bin","binary_version":"2.23-0ubuntu11.3+esm9"},{"binary_name":"libc6","binary_version":"2.23-0ubuntu11.3+esm9"},{"binary_name":"libc6-amd64","binary_version":"2.23-0ubuntu11.3+esm9"},{"binary_name":"libc6-armel","binary_version":"2.23-0ubuntu11.3+esm9"},{"binary_name":"libc6-dev-amd64","binary_version":"2.23-0ubuntu11.3+esm9"},{"binary_name":"libc6-dev-armel","binary_version":"2.23-0ubuntu11.3+esm9"},{"binary_version":"2.23-0ubuntu11.3+esm9","binary_name":"libc6-dev-i386"},{"binary_name":"libc6-dev-s390","binary_version":"2.23-0ubuntu11.3+esm9"},{"binary_name":"libc6-dev-x32","binary_version":"2.23-0ubuntu11.3+esm9"},{"binary_version":"2.23-0ubuntu11.3+esm9","binary_name":"libc6-i386"},{"binary_name":"libc6-pic","binary_version":"2.23-0ubuntu11.3+esm9"},{"binary_name":"libc6-s390","binary_version":"2.23-0ubuntu11.3+esm9"},{"binary_name":"libc6-x32","binary_version":"2.23-0ubuntu11.3+esm9"},{"binary_version":"2.23-0ubuntu11.3+esm9","binary_name":"locales"},{"binary_name":"locales-all","binary_version":"2.23-0ubuntu11.3+esm9"},{"binary_name":"multiarch-support","binary_version":"2.23-0ubuntu11.3+esm9"},{"binary_version":"2.23-0ubuntu11.3+esm9","binary_name":"nscd"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-95818.json"}},{"package":{"name":"glibc","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/glibc?arch=source&distro=esm-infra%2Fbionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"vers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