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CVE-2019-15542

23
FAUCET Score

CVE-2019-15542 is a high-severity vulnerability affecting the ammonia crate for Rust, specifically versions prior to 2.1.0. It involves uncontrolled recursion during HTML DOM tree serialization, which can lead to a denial of service. The attack vector is network-based with low attack complexity, requiring no user interaction or privileges, and its primary impact is high availability loss. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.1.0CPE matchmatch criteria
cpe:2.3:a:ammonia_project:ammonia:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

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 Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.41%
Probability of exploitation in next 30 days
EPSS Percentile
69.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0141 is in the 51st percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

rustpatch availablevia ghsa
Product: ammoniaFixed in: 2.1.0

Vendor Advisories (1)

rustGHSA-5hp8-35wj-m525high

Uncontrolled recursion in ammonia

Aug 25, 2021

References

rustsec.org / advisories/RUSTSEC-2019-0001.html
Third Party Advisory