Security readout for executives and security teams
Plain-English summary
Older yaml-rust versions can crash an application when parsing a malicious YAML document. The issue affects yaml-rust 0.4.0 and earlier and is fixed in 0.4.1 or later. Business risk is availability loss where untrusted YAML is accepted.
Executive priority
Handle during normal vulnerability remediation, faster if YAML input is externally reachable or business-critical. The main risk is service interruption, not data theft or privilege escalation based on available sources.
Technical view
CVE-2019-1010182 is uncontrolled recursion in yaml-rust's YamlLoader::load_from_str. A malicious YAML document can trigger an abort described as impossible to catch, causing denial of service. The source bundle names yaml-rust 0.4.0 and earlier as affected.
Likely exposure
Exposure is likely limited to Rust applications or tools that depend on yaml-rust 0.4.0 or earlier and parse YAML from users, files, APIs, CI inputs, or other untrusted sources.
Exploitation context
The provided sources describe a malicious YAML parsing denial of service. They do not show public exploitation, weaponized details, CVSS scoring, or CISA KEV listing. Treat active exploitation as unconfirmed.
Researcher notes
Evidence is concise but clear on affected component, impact, attack vector, and fixed version. Missing details include CVSS, CWE mapping, exploit maturity, and affected downstream products. Do not broaden scope beyond yaml-rust without dependency evidence.
Mitigation direction
- Upgrade yaml-rust to version 0.4.1 or later.
- Prioritize systems that parse untrusted YAML input.
- Check vendor and maintainer guidance for downstream package constraints.
- Reduce exposure of YAML parsing endpoints where upgrade is delayed.
Validation and detection
- Inventory Rust dependencies for yaml-rust versions 0.4.0 or earlier.
- Review code paths using YamlLoader::load_from_str on untrusted input.
- Confirm deployed builds include yaml-rust 0.4.1 or later.
- Add regression tests for parser robustness without using malicious payload detail.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2019-1010182 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/chyh1990/yaml-rust/pull/109CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.