CVE-2026-104020
Uncontrolled recursion in the Ion reader in Amazon Ion Python before 0.15.0 might allow a remote…
- Risk score
- 68/100
- CVSS
- 7.5 v3.1
- Exploit chance (30 days)
- 0.4%
- Published
- 1 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- 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.
- Affected
- See advisory
- Fix
- Upgrade the product to 0.15.0 or later.
- Exploitation
- No known exploitation
Why it is Amber
- CVSS 7.5 high
- Remotely exploitable without logging in
- On your watchlist: python
References
Original description
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.
Last activity 1 Oct 2026. Patch Forecast updates every hour.