CVE-2025-6497
published 2025-06-23CVE-2025-6497: A vulnerability was found in HTACG tidy-html5 5.8.0. It has been rated as problematic. This issue affects the function prvTidyParseNamespace of the file…
PriorityP412low3.3CVSS 3.1
AVLACLPRLUINSUCNINAL
EPSS
0.14%
3.5th percentile
A vulnerability was found in HTACG tidy-html5 5.8.0. It has been rated as problematic. This issue affects the function prvTidyParseNamespace of the file src/parser.c. The manipulation leads to reachable assertion. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used.
Affected
4 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | tidy-html5 | — | — |
| htacg | tidy-html5 | — | — |
| msrc | azl3_tidy_5.8.0-6_on_azure_linux_3.0 | — | — |
| msrc | cbl2_tidy_5.8.0-6_on_cbl_mariner_2.0 | — | — |
CVSS provenance
nvdv3.13.3LOWCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
nvdv4.01.9LOWCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
nvdv2.01.7LOWAV:L/AC:L/Au:S/C:N/I:N/A:P
osv4.8MEDIUM
vendor_debian4.8MEDIUM
vendor_msrc3.3LOW
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Microsoft
HTACG tidy-html5 parser.c prvTidyParseNamespace assertion
vendor_msrc·2025-06-10·CVSS 3.3
CVE-2025-6497 [MEDIUM] CWE-617 HTACG tidy-html5 parser.c prvTidyParseNamespace assertion
HTACG tidy-html5 parser.c prvTidyParseNamespace assertion
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.
Mariner: Mariner
VulDB: VulDB
Customer Action Required: Yes
Debian
CVE-2025-6497: tidy-html5 - A vulnerability was found in HTACG tidy-html5 5.8.0. It has been rated as proble...
vendor_debian·2025·CVSS 4.8
CVE-2025-6497 [MEDIUM] CVE-2025-6497: tidy-html5 - A vulnerability was found in HTACG tidy-html5 5.8.0. It has been rated as proble...
A vulnerability was found in HTACG tidy-html5 5.8.0. It has been rated as problematic. This issue affects the function prvTidyParseNamespace of the file src/parser.c. The manipulation leads to reachable assertion. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used.
Scope: local
bookworm: open
bullseye: open
forky: open
sid: open
trixie: open
GHSA
GHSA-2843-f6r8-wh6v: A vulnerability was found in HTACG tidy-html5 5
ghsa_unreviewed·2025-06-23
CVE-2025-6497 [MEDIUM] CWE-617 GHSA-2843-f6r8-wh6v: A vulnerability was found in HTACG tidy-html5 5
A vulnerability was found in HTACG tidy-html5 5.8.0. It has been rated as problematic. This issue affects the function prvTidyParseNamespace of the file src/parser.c. The manipulation leads to reachable assertion. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used.
OSV
CVE-2025-6497: A vulnerability was found in HTACG tidy-html5 5
osv·2025-06-23·CVSS 4.8
CVE-2025-6497 [MEDIUM] CVE-2025-6497: A vulnerability was found in HTACG tidy-html5 5
A vulnerability was found in HTACG tidy-html5 5.8.0. It has been rated as problematic. This issue affects the function prvTidyParseNamespace of the file src/parser.c. The manipulation leads to reachable assertion. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2025-06-23
Published