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Mistune Heading ID Attribute has Injection XSS

🗓️ 09 May 2026 00:13:12Reported by GitHub Advisory DatabaseType 
github
 github
🔗 github.com👁 5 Views

Mistune heading ids are not escaped, enabling XSS via custom heading_id callbacks.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-44897
26 May 202620:40
attackerkb
CBLMariner
CVE-2026-44897 affecting package python-mistune for versions less than 3.2.1-1
18 May 202620:36
cbl_mariner
Chainguard
CVE-2026-44897 vulnerabilities
13 May 202601:17
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Circl
CVE-2026-44897
6 May 202607:13
circl
CNNVD
mistune 跨站脚本漏洞
26 May 202600:00
cnnvd
CVE
CVE-2026-44897
26 May 202620:40
cve
Cvelist
CVE-2026-44897 Mistune Heading ID Attribute Injection XSS
26 May 202620:40
cvelist
Debian CVE
CVE-2026-44897
26 May 202620:40
debiancve
EUVD
EUVD-2026-31994
26 May 202620:40
euvd
NVD
CVE-2026-44897
26 May 202621:16
nvd
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mistune_projectmistuneRange3.2.0pip

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21 May 2026 02:10Current
6Medium risk
Vulners AI Score6
CVSS 3.16.1
EPSS0.00031
SSVC
5