Security readout for executives and security teams
Plain-English summary
CVE-2021-41097 affects the aurelia-path JavaScript package used by Aurelia apps. A crafted URL or parsed string can pollute JavaScript object prototypes, potentially altering application behavior and creating confidentiality and integrity risk. Public sources identify a fix in aurelia-path 1.1.7.
Executive priority
Prioritize remediation for any public Aurelia application using the vulnerable package. The issue is critical by CVSS and has a straightforward vendor patch. Lack of confirmed active exploitation lowers emergency certainty, but exposed URL parsing makes delayed remediation hard to justify.
Technical view
aurelia-path before 1.1.7 fails to safely handle prototype-related keys while parsing strings. Because aurelia-router commonly uses this package, affected Aurelia apps may parse attacker-controlled URL input and modify Object prototype state. CVSS v3.1 is 9.1: network, low complexity, no privileges, no user interaction.
Likely exposure
Exposure is most likely in Aurelia applications that include aurelia-path below 1.1.7 directly or through aurelia-router. Internet-facing routes that parse URL query or path data are the clearest concern. The sources do not identify other affected products.
Exploitation context
The source bundle describes attacker-controlled URL parsing as the trigger condition. CISA KEV is false in the provided data, and no cited source here confirms active exploitation. Treat exploit status as unconfirmed, not absent.
Researcher notes
The advisory ties impact to prototype pollution in string parsing, with aurelia-router called out as the common exposure path. The available sources provide affected version and fix version, but do not provide environment-specific impact evidence, exploit prevalence, or compensating controls.
Mitigation direction
- Upgrade aurelia-path to version 1.1.7 or later.
- Update dependencies that bring aurelia-path transitively, especially aurelia-router.
- Regenerate lockfiles only through the normal dependency update workflow.
- Check the Aurelia advisory and release notes for vendor-specific guidance.
- Prioritize internet-facing Aurelia applications that parse URL input.
Validation and detection
- Search package manifests and lockfiles for aurelia-path versions below 1.1.7.
- Check dependency trees for aurelia-router pulling vulnerable aurelia-path.
- Confirm production builds resolve aurelia-path to 1.1.7 or later.
- Run existing route and query parsing regression tests after upgrading.
- Review SCA results for lingering CVE-2021-41097 findings.
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
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CWE-1321: Exact CWE lookup
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Open ATT&CK lookupCVE-2021-41097 mapping review
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Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
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 vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N3.95.2Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
9.1CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/aurelia/path/security/advisories/GHSA-3c9c-2p65-qvwvCVE reference · x_refsource_CONFIRM
- https://github.com/aurelia/path/issues/44CVE reference · x_refsource_MISC
- https://github.com/aurelia/path/commit/7c4e235433a4a2df9acc313fbe891758084fdec1CVE reference · x_refsource_MISC
- https://github.com/aurelia/path/releases/tag/1.1.7CVE reference · x_refsource_MISC
- https://www.npmjs.com/package/aurelia-pathCVE 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.
Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.