ECHO-E3C1-3A3B-83BA Integer overflow in xmlURIEscapeStr (uri.c). Upstream fix (8edbbdb0) adds `if (len == 0) return(NULL);` after xmlStrlen to catch overflow where xmlStrlen returns 0 for a non-empty input. Debian trixie's 2.9.14-based package already has the equivalent guard `if (!(len > 0)) return(NULL);` at the same site, so the bot's CVE-2026-86139 backport (#21567) is a no-op cosmetic rewrite and is not carried. Verified against the deb13u3 source tree.
| Reporter | Title | Published | Views | Family All 34 |
|---|---|---|---|---|
 | CVE-2026-86139 | 5 Sep 202604:23 | – | alpinelinux |
 | CVE-2026-86139 | 5 Sep 202604:23 | – | cve |
 | CVE-2026-86139 | 5 Sep 202604:23 | – | cvelist |
 | CVE-2026-86139 | 5 Sep 202604:23 | – | debiancve |
 | EUVD-2026-71832 | 5 Sep 202604:23 | – | euvd |
 | CVE-2026-86139 | 5 Sep 202604:23 | – | mend |
 | Updated libxml2 packages fix security vulnerabilities | 28 Sep 202617:04 | – | mageia |
 | In libxml2 before 2.15.4, xmlURIEscapeStr in uri.c has an integer overflow. | 6 Sep 202611:36 | – | mscve |
 | CVE-2026-86139 | 5 Sep 202605:17 | – | nvd |
 | AZL-99714 CVE-2026-86139 affecting package libxml2 2.11.5-10 | 5 Sep 202605:17 | – | osv_azl |
10
| Source | Link |
|---|---|
| advisory | www.advisory.echohq.com/cve/CVE-2026-86139 |
| advisory | www.advisory.echohq.com/cve/CVE-2026-86139 |
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08 Sep 2026 10:45Current
5.6Medium risk
Vulners AI Score5.6
CVSS 3.16.9 - 7.8
EPSS0.00166
SSVC