An update for libxml2 is now available for openEuler-20.03-LTS-SP4 Security Advisory openeuler-security@openeuler.org openEuler security committee openEuler-SA-2026-3887 Final 1.0 1.0 2026-09-20 Initial 2026-09-20 2026-09-20 openEuler SA Tool V1.0 2026-09-20 libxml2 security update An update for libxml2 is now available for openEuler-20.03-LTS-SP4 This library allows to manipulate XML files. It includes support to read, modify and write XML and HTML files. There is DTDs support this includes parsing and validation even with complex DtDs, either at parse time or later once the document has been modified. The output can be a simple SAX stream or and in-memory DOM like representations. In this case one can use the built-in XPath and XPointer implementation to select sub nodes or ranges. A flexible Input/Output mechanism is available, with existing HTTP and FTP modules and combined to an URI library. Security Fix(es): Integer overflow in libxml in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)(CVE-2026-17705) In libxml2 before 2.15.4, xmlFAParsePosCharGroup has an out-of-bounds read, aka an out-of-bounds read in the NXT macro in xmlregexp.(CVE-2026-86137) In libxml2 before 2.15.4, xmlDictAddQString in dict.c has an integer overflow and resultant heap-based buffer overflow.(CVE-2026-86138) In libxml2 before 2.15.4, xmlSnprintfElements in valid.c has a strcat stack-based buffer overflow.(CVE-2026-86140) An update for libxml2 is now available for openEuler-20.03-LTS-SP4. openEuler Security has rated this update as having a security impact of high. 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. High libxml2 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3887 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-17705 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-86137 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-86138 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-86140 https://nvd.nist.gov/vuln/detail/CVE-2026-17705 https://nvd.nist.gov/vuln/detail/CVE-2026-86137 https://nvd.nist.gov/vuln/detail/CVE-2026-86138 https://nvd.nist.gov/vuln/detail/CVE-2026-86140 openEuler-20.03-LTS-SP4 libxml2-2.9.10-62.oe2003sp4.aarch64.rpm libxml2-debuginfo-2.9.10-62.oe2003sp4.aarch64.rpm libxml2-debugsource-2.9.10-62.oe2003sp4.aarch64.rpm libxml2-devel-2.9.10-62.oe2003sp4.aarch64.rpm python2-libxml2-2.9.10-62.oe2003sp4.aarch64.rpm python3-libxml2-2.9.10-62.oe2003sp4.aarch64.rpm libxml2-2.9.10-62.oe2003sp4.src.rpm libxml2-2.9.10-62.oe2003sp4.x86_64.rpm libxml2-debuginfo-2.9.10-62.oe2003sp4.x86_64.rpm libxml2-debugsource-2.9.10-62.oe2003sp4.x86_64.rpm libxml2-devel-2.9.10-62.oe2003sp4.x86_64.rpm python2-libxml2-2.9.10-62.oe2003sp4.x86_64.rpm python3-libxml2-2.9.10-62.oe2003sp4.x86_64.rpm libxml2-help-2.9.10-62.oe2003sp4.noarch.rpm Integer overflow in libxml in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High) 2026-09-20 CVE-2026-17705 openEuler-20.03-LTS-SP4 High 8.8 AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H libxml2 security update 2026-09-20 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3887 In libxml2 before 2.15.4, xmlFAParsePosCharGroup has an out-of-bounds read, aka an out-of-bounds read in the NXT macro in xmlregexp. 2026-09-20 CVE-2026-86137 openEuler-20.03-LTS-SP4 Low 2.9 AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L libxml2 security update 2026-09-20 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3887 In libxml2 before 2.15.4, xmlDictAddQString in dict.c has an integer overflow and resultant heap-based buffer overflow. 2026-09-20 CVE-2026-86138 openEuler-20.03-LTS-SP4 Medium 6.9 AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L libxml2 security update 2026-09-20 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3887 In libxml2 before 2.15.4, xmlSnprintfElements in valid.c has a strcat stack-based buffer overflow. 2026-09-20 CVE-2026-86140 openEuler-20.03-LTS-SP4 High 8.0 AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L libxml2 security update 2026-09-20 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3887