CVEvulnerability
CVE-2026-100836
5.3 MEDIUM
Official page ↗
- Status
- Deferred
- Published
- 2026-09-27
- Last modified
- 2026-09-28
- Assigner
- [email protected]
- CVSS 4.0 ([email protected])
- 5.3 MEDIUM — CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- CVSS 3.1 ([email protected])
- 4.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
- Weaknesses
- CWE-129
Description
Contrast through 1.20.0 contains a panic vulnerability in the transit-engine endpoint's ciphertextContainer.UnmarshalJSON function that fails to validate decoded ciphertext length before slicing. An authenticated workload with a valid mesh certificate can trigger a runtime panic by submitting a short base64-encoded ciphertext, causing log spam and request failures without crashing the process.
Related
Weakness · CWE (1)
- CWE-129 Improper Validation of Array Index weakness
References
- https://github.com/edgelesssys/contrast/security/advisories/GHSA-3ccm-4qq2-5wrp github.com
- https://www.vulncheck.com/advisories/edgeless-systems-contrast-through-1.20.0-denial-of-service-via-ciphertextcontainer www.vulncheck.com
- https://github.com/edgelesssys/contrast/security/advisories/GHSA-3ccm-4qq2-5wrp github.com