GHSA-5hp8-35wj-m525 CVE-2019-15542 RUSTSEC-2019-0001
Uncontrolled recursion in ammonia
- Severity
- 7.5 / 10
- High · CVSS 3.0
- Exploit chance (EPSS)
- 1.41%
- Chance of exploitation in the next 30 days. Higher than 72.68% of scored vulnerabilities.
- Known exploited
- No
- Not in CISA's catalog
- Weakness
- CWE-674 Uncontrolled Recursion
- Fix
2.1.0- Upgrade ammonia to this version or later
Description
An issue was discovered in the ammonia crate before 2.1.0 for Rust. There is uncontrolled recursion during HTML DOM tree serialization.
Affected versions
crates.io
How to fix
Move to the fixed version or later with your package manager, update the lockfile, and run your tests. If the package only arrives through another dependency, upgrade that dependency first. If none of its releases pulls a fixed version yet, force the version with your package manager's override.
ammonia crates.io → 2.1.0
- cargo
cargo update -p ammonia --precise 2.1.0
Severity breakdown
CVSS 3.0 7.5
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Weakness
CWE-674: Uncontrolled Recursion
The product does not properly control the amount of recursion that takes place, consuming excessive resources, such as allocated memory or the program stack.
How to prevent it
- Implementation: Ensure that an end condition will be reached under all logic conditions. The end condition may include checking against the depth of recursion and exiting with an error if the recursion goes too deep. The complexity of the end condition contributes to the effectiveness of this action.
- Implementation: Increase the stack size.
References
Advisories
Packages
Other links
Timeline
- Published
- Last updated by the source
- Latest EPSS score
Related advisories
| Advisory | Severity | Why it's related |
|---|---|---|
| RUSTSEC-2026-0373 Missing case-insensitive matching for CSS url function | Not rated yet | Also affects ammonia |
| GHSA-m6mh-2hw2-555x Ammonia: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') | Medium | Also affects ammonia |
| GHSA-9jh8-v38h-cvhr ammonia: mXSS via MathML `annotation-xml` encoding strip | Medium | Also affects ammonia |
| GHSA-mm7x-qfjj-5g2c Ammonia incorrectly handles embedded SVG and MathML leading to mutation XSS after removal | Low | Also affects ammonia |
| GHSA-p2g9-94wh-65c2 Space bug in `clean_text` | Medium | Also affects ammonia |
| RUSTSEC-2021-0157 Incorrect escaping for `url("")` functions in CSS style attributes | Not rated yet | Also affects ammonia |
| RUSTSEC-2021-0158 XSS in ammonia via SVG `animateMotion`, `animateTransform`, and/or `animateColor` tags | Not rated yet | Also affects ammonia |
| GHSA-5325-xw5m-phm3 Cross-site Scripting in ammonia | Medium | Also affects ammonia |
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