CVE-2026-85730 (GCVE-0-2026-85730)
Vulnerability from cvelistv5 – Published: 2026-09-04 15:21 – Updated: 2026-09-09 16:34
VLAI
EPSS
VEX
Title
smol-toml: Denial of Service via malformed TOML documents
Summary
smol-toml is a small, fast, and correct TOML parser and serializer. Prior to 1.7.1, parse() can enter an infinite loop when a value inside an array or inline table is followed by a comment with no trailing newline. In src/util.ts, skipUntil() calls indexOfNewline(), receives -1 at the end of input, and resets the cursor to the beginning of the string instead of leaving the structure scan. The parser then hangs indefinitely and can consume a service's processing capacity when an application parses attacker-controlled TOML. This issue is fixed in version 1.7.1.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-04 17:40 UTC
CWE
Assigner
GitHub_M
CNA
References
4 references
| URL | Tags |
|---|---|
| https://github.com/squirrelchat/smol-toml/securit… | x_refsource_CONFIRM |
| https://github.com/squirrelchat/smol-toml/commit/… | x_refsource_MISC |
| https://github.com/squirrelchat/smol-toml/release… | x_refsource_MISC |
| https://medium.com/@ravindu.lakmina1/seven-bytes-… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| squirrelchat | smol-toml |
Affected:
< 1.7.1
|
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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