CLSA-2026-1786976393
See a problem?- Import Source
- https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/debian10els/CLSA-2026-1786976393.json
- JSON Data
- https://api.osv.dev/v1/vulns/CLSA-2026-1786976393
- Upstream
- Published
- 2026-08-17T14:20:05Z
- Modified
- 2026-10-26T09:31:52Z
- Summary
- Fix CVE(s): CVE-2026-72522
- Details
-
- SECURITY UPDATE: Out-of-bounds read and resultant infinite loop
because low surrogates are treated the same as high surrogates in
the *_toUtf16 functions (libexpat before 2.8.3)
- debian/patches/CVE-2026-72522.patch: mask the high byte with 0xFC instead of 0xF8 so the split-surrogate guard in DEFINE_UTF16_TO_UTF16 matches only genuine high surrogates (0xD800-0xDBFF) and no longer accepts low ones (0xDC00-0xDFFF); also carries upstream's regression test into tests/runtests.c (2.2.6 has no tests/misc_tests.c), which exercises the wide -DXML_UNICODE build only
- CVE-2026-72522
- SECURITY UPDATE: Out-of-bounds read and resultant infinite loop
because low surrogates are treated the same as high surrogates in
the *_toUtf16 functions (libexpat before 2.8.3)
- References
Affected packages
TuxCare:Debian:10 / expat
Package
- Name
- expat
- Purl
- pkg:deb/tuxcare/expat?distro=debian-10
TuxCare:Debian:10 / libexpat1
Package
- Name
- libexpat1
- Purl
- pkg:deb/tuxcare/libexpat1?distro=debian-10