The htmlParseComment function in HTMLparser.c in libxml2 allows attackers to obtain…
Priority MEDIUM 50CWE-119Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 17 fixed, 2 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-119 and the CVSS impact.
Summary
The htmlParseComment function in HTMLparser.c in libxml2 allows attackers to obtain sensitive information, cause a denial of service (out-of-bounds heap memory access and application crash), or possibly have unspecified other impact via an unclosed HTML comment.
Why it matters now
EPSS 0.04925 92nd percentileScored 2026-11-07
Fix Partial Red Hat: 3 advisoriesRed Hat: 17 fixed, 2 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:* | before 2.9.3 | Vulnerable | xmlsoft |
| cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* | 7.0 | Vulnerable | Debian |
| cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* | 8.0 | Vulnerable | Debian |
| cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | 9.0 | Vulnerable | Debian |
- cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:* Versions before 2.9.3 Vulnerable ·xmlsoft
- cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Debian
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
Remediation
Red Hat 3 advisories
- RHSA-2016:1089 Released 2016-05-17 · Red Hat rating ModerateRed Hat JBoss Web Server 3.0.3 security update
- Red Hat JBoss Web Server 3.0
- RHSA-2015:2550 Released 2015-12-07 · Red Hat rating Moderatelibxml2 security update
- Red Hat Enterprise Linux Client (v. 7) libxml2-2.9.1-6.el7_2.2, libxml2-python-2.9.1-6.el7_2.2
- Red Hat Enterprise Linux Client Optional (v. 7) libxml2-devel-2.9.1-6.el7_2.2, libxml2-static-2.9.1-6.el7_2.2
- Red Hat Enterprise Linux ComputeNode (v. 7) libxml2-2.9.1-6.el7_2.2, libxml2-python-2.9.1-6.el7_2.2
- Red Hat Enterprise Linux ComputeNode Optional (v. 7) libxml2-devel-2.9.1-6.el7_2.2, libxml2-static-2.9.1-6.el7_2.2
- Red Hat Enterprise Linux Server (v. 7) libxml2-2.9.1-6.el7_2.2, libxml2-2.9.1-6.el7_2.2.ppc, libxml2-devel-2.9.1-6.el7_2.2 +2
- Red Hat Enterprise Linux Server Optional (v. 7) libxml2-static-2.9.1-6.el7_2.2, libxml2-static-2.9.1-6.el7_2.2.ppc
- Red Hat Enterprise Linux Workstation (v. 7) libxml2-2.9.1-6.el7_2.2, libxml2-devel-2.9.1-6.el7_2.2, libxml2-python-2.9.1-6.el7_2.2
- Red Hat Enterprise Linux Workstation Optional (v. 7) libxml2-static-2.9.1-6.el7_2.2
- RHSA-2015:2549 Released 2015-12-07 · Red Hat rating Moderatelibxml2 security update
- Red Hat Enterprise Linux Desktop (v. 6) libxml2-2.7.6-20.el6_7.1, libxml2-python-2.7.6-20.el6_7.1
- Red Hat Enterprise Linux Desktop Optional (v. 6) libxml2-devel-2.7.6-20.el6_7.1, libxml2-static-2.7.6-20.el6_7.1
- Red Hat Enterprise Linux HPC Node (v. 6) libxml2-2.7.6-20.el6_7.1, libxml2-python-2.7.6-20.el6_7.1
- Red Hat Enterprise Linux HPC Node Optional (v. 6) libxml2-devel-2.7.6-20.el6_7.1, libxml2-static-2.7.6-20.el6_7.1
- Red Hat Enterprise Linux Server (v. 6) libxml2-2.7.6-20.el6_7.1, libxml2-2.7.6-20.el6_7.1.ppc, libxml2-devel-2.7.6-20.el6_7.1 +2
- Red Hat Enterprise Linux Server Optional (v. 6) libxml2-static-2.7.6-20.el6_7.1
- Red Hat Enterprise Linux Workstation (v. 6) libxml2-2.7.6-20.el6_7.1, libxml2-devel-2.7.6-20.el6_7.1, libxml2-python-2.7.6-20.el6_7.1
- Red Hat Enterprise Linux Workstation Optional (v. 6) libxml2-static-2.7.6-20.el6_7.1
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 5 | Affected | No fix planned: Will not fix |
| Red Hat JBoss Enterprise Web Server 2 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux Client (v. 7) | Fixed | RHSA-2015:2550 |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | RHSA-2015:2550 |
| Red Hat Enterprise Linux ComputeNode (v. 7) | Fixed | RHSA-2015:2550 |
| Red Hat Enterprise Linux ComputeNode Optional (v. 7) | Fixed | RHSA-2015:2550 |
| Red Hat Enterprise Linux Desktop (v. 6) | Fixed | RHSA-2015:2549 |
| Red Hat Enterprise Linux Desktop Optional (v. 6) | Fixed | RHSA-2015:2549 |
| Red Hat Enterprise Linux HPC Node (v. 6) | Fixed | RHSA-2015:2549 |
| Red Hat Enterprise Linux HPC Node Optional (v. 6) | Fixed | RHSA-2015:2549 |
| Red Hat Enterprise Linux Server (v. 6) | Fixed | RHSA-2015:2549 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2015:2550 |
| Red Hat Enterprise Linux Server Optional (v. 6) | Fixed | RHSA-2015:2549 |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | RHSA-2015:2550 |
| Red Hat Enterprise Linux Workstation (v. 6) | Fixed | RHSA-2015:2549 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2015:2550 |
| Red Hat Enterprise Linux Workstation Optional (v. 6) | Fixed | RHSA-2015:2549 |
| Red Hat Enterprise Linux Workstation Optional (v. 7) | Fixed | RHSA-2015:2550 |
| Red Hat JBoss Web Server 3.0 | Fixed | RHSA-2016:1089 |
Timeline
- 2026-10-02 Threatist record created from CVE-2015-8710
- 2026-10-03 Alias added: GHSA-v7gh-6vm2-wvxm
References
Advisory 4
Sources
- CVE-2015-8710 · CVE Program
- CVE-2015-8710 · NVD
- FIRST EPSS
- GHSA-v7gh-6vm2-wvxm · GitHub Advisory Database · CC BY 4.0
- CVE-2015-8710 · Red Hat security data · CC BY 4.0
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