CVEvulnerability
CVE-2026-2968
2.9 LOW
Official page ↗
- Status
- Analyzed
- Published
- 2026-02-23
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 4.0 ([email protected])
- 2.9 LOW — CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/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])
- 3.7 LOW — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
- CVSS 2.0 ([email protected])
- 2.6 LOW — AV:N/AC:H/Au:N/C:N/I:P/A:N
- Weaknesses
- CWE-345, CWE-347
Description
A vulnerability was detected in Cesanta Mongoose up to 7.20. This impacts the function mg_chacha20_poly1305_decrypt of the file /src/tls_chacha20.c of the component Poly1305 Authentication Tag Handler. The manipulation results in improper verification of cryptographic signature. The attack may be launched remotely. This attack is characterized by high complexity. The exploitability is said to be difficult. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Affected configurations
• cesanta mongoose (<= 7.20)
Related
References
- https://github.com/dwBruijn/CVEs/blob/main/Mongoose/ChaCha20Poly1305.md Exploit, Third Party Advisory
- https://github.com/dwBruijn/CVEs/blob/main/Mongoose/ChaCha20Poly1305.md#poc Exploit, Third Party Advisory
- https://vuldb.com/?ctiid.347335 Permissions Required, VDB Entry
- https://vuldb.com/?id.347335 Third Party Advisory, VDB Entry
- https://vuldb.com/?submit.757091 Third Party Advisory, VDB Entry