CVE-2026-104020
- Source
- https://cve.org/CVERecord?id=CVE-2026-104020
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-104020.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-104020
- Aliases
-
- GHSA-93q6-f8hx-vv7f
- Published
- 2026-10-01T20:36:33Z
- Modified
- 2026-10-04T02:30:23Z
- Severity
-
- 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
- Summary
- Uncontrolled recursion in the Ion reader in Amazon Ion Python
- Details
-
Uncontrolled recursion in the Ion reader in Amazon Ion Python before 0.15.0 might allow a remote unauthenticated actor to crash the application using the library, resulting in a denial of service, via a crafted, deeply nested Ion value.
To remediate this issue, users should upgrade to version 0.15.0 or later.
- Database specific
{ "cna_assigner": "AMZN", "cwe_ids": [ "CWE-674" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/104xxx/CVE-2026-104020.json" }- References
-
- https://aws.amazon.com/security/security-bulletins/2026-122-aws/
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/104xxx/CVE-2026-104020.json
- https://github.com/amazon-ion/ion-python/security/advisories/GHSA-93q6-f8hx-vv7f
- https://nvd.nist.gov/vuln/detail/CVE-2026-104020
- https://github.com/amazon-ion/ion-python/releases/tag/v0.15.0
Affected packages
Git / github.com/amazon-ion/ion-python
Affected ranges
- Type
- GIT
- Repo
- https://github.com/amazon-ion/ion-python
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed
- Database specific
-
Show details
{ "extracted_events": [ { "introduced": "0" }, { "fixed": "0.15.0" } ], "source": [ "AFFECTED_FIELD", "DESCRIPTION", "REFERENCES" ] }