In Tidy 5.7.0, the prvTidyTidyMetaCharset function in clean.c allows attackers to cause a…
Priority LOW 36CWE-119Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.
Summary
In Tidy 5.7.0, the prvTidyTidyMetaCharset function in clean.c allows attackers to cause a denial of service (Segmentation Fault), because the currentNode variable in the "children of the head" processing feature is modified in the loop without validating the new value.
Why it matters now
EPSS 0.01377 72nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
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
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
Not affected: 1 product
- Red Hat Enterprise Linux 6
Timeline
- 2026-10-02 Threatist record created from CVE-2017-17497
- 2026-10-03 Alias added: GHSA-xj89-pr57-g8p3
References
More HTACG Tidy vulnerabilities
- TI-2021-12836 An issue in HTACG HTML Tidy v5.7.28 allows attacker to execute arbitrary code via the -g… CVSS 3.1CRITICAL 9.8
- TI-2025-05899 HTACG tidy-html5 alloc.c defaultAlloc memory leak CVSS 4.0MEDIUM 4.8
- TI-2015-04650 Heap-based buffer overflow in the ParseValue function in lexer.c in tidy before 4.9.31… CVSS 2.0MEDIUM 6.8
- TI-2017-09969 In Tidy 5.5.31, the IsURLCodePoint function in attrs.c allows attackers to cause a denial… CVSS 3.0HIGH 7.5
- TI-2015-04651 The ParseValue function in lexer.c in tidy before 4.9.31 allows remote attackers to cause… CVSS 2.0MEDIUM 4.3
Sources
- CVE-2017-17497 · CVE Program
- CVE-2017-17497 · NVD
- FIRST EPSS
- GHSA-xj89-pr57-g8p3 · GitHub Advisory Database · CC BY 4.0
- CVE-2017-17497 · Red Hat security data · CC BY 4.0
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