CVE-2026-34209
mppx: Tempo has a session close voucher bypass vulnerability due to settled amount equality
7.5
HIGH
CVSS 3.1
EPSS 0.01%
描述
### Impact The `tempo/session` cooperative close handler validated the close voucher amount using `<` instead of `<=` against the on-chain settled amount. An attacker could submit a close voucher exactly equal to the settled amount, which would be accepted without committing any new funds, effectively closing or griefing the channel for free. ### Patches Fixed in 0.4.11. ### Workarounds There are no workarounds available for this vulnerability.
如何修補 CVE-2026-34209
要修補 CVE-2026-34209,請將受影響套件升級到下列已修補版本。
- —升級至 0.4.11 或更新版本
CVE-2026-34209 正在被利用嗎?
低 — EPSS 為 0.0%,目前沒有觀察到大規模利用活動。
受影響套件(1)
- from 0, < 0.4.11
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |