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CVE-2026-100895— Trusted Domain Project OpenARC libopenarc arc-canon.c arc_parse_canon_t null pointer dereference

Quick assessment

Affected
Trusted Domain Project OpenARC
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 Trusted Domain Project OpenARC 1.0.0.Beta1 及更早版本中发现了一个安全漏洞。受影响的函数是 libopenarc/arc-canon.c 中的 arc_parse_canon_t，该函数属于 libopenarc 组件。此漏洞会导致空指针解引用。攻击者可以远程发动攻击。该漏洞的利用代码已公开发布，可能被用于实际攻击。建议升级到版本 1.0.0.Beta0 以修复此问题。建议升级受影响的组件以消除风险。

CVSS 5.3 · Medium

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-100895

Vulnerability Information
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Vulnerability Title
Trusted Domain Project OpenARC libopenarc arc-canon.c arc_parse_canon_t null pointer dereference
Source: CVE Program / CVE List V5
Vulnerability Description
A security flaw has been discovered in Trusted Domain Project OpenARC up to 1.0.0.Beta1. Impacted is the function arc_parse_canon_t in the library libopenarc/arc-canon.c of the component libopenarc. The manipulation results in null pointer dereference. The attack may be launched remotely. The exploit has been released to the public and may be used for attacks. Upgrading to version 1.0.0.Beta0 is recommended to address this issue. Upgrading the affected component is advised.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
空指针解引用
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Trusted Domain Project OpenARC 1.0.0.Beta1 cpe:2.3:a:trusted_domain_project:openarc:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-100895

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III. Intelligence Information for CVE-2026-100895

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Security Blog Posts for CVE-2026-100895 (1)

Other References for CVE-2026-100895 (1)

Same Patch Batch · Trusted Domain Project · 2026-09-28 · 7 CVEs total

CVE-2026-101014 7.3 HIGH Trusted Domain Project OpenDMARC DMARC Record opendmarc_util.c opendmarc_util_cleanup off-
CVE-2026-101015 7.3 HIGH Trusted Domain Project OpenDMARC policy.c improper validation of unsafe equivalence in inp
CVE-2026-100891 7.3 HIGH Trusted Domain Project OpenDMARC Internationalized Domain Name opendmarc_policy.c opendmar
CVE-2026-101016 6.5 MEDIUM Trusted Domain Project OpenDMARC opendmarc_policy.c opendmarc_policy_parse_dmarc exception
CVE-2026-101017 6.5 MEDIUM Trusted Domain Project OpenDMARC opendmarc_policy.c strcasecmp exceptional condition
CVE-2026-100890 5.3 MEDIUM Trusted Domain Project OpenDMARC SPF Parser opendmarc_spf.c opendmarc_spf_ipv6_explode nul

IV. Related Vulnerabilities

Same vendor: Trusted Domain Project
Same weakness: CWE-476

V. Comments for CVE-2026-100895

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