CVE-2025-68131
CBORDecoder reuse can leak shareable values across decode calls
7.5
HIGH
CVSS 3.1
EPSS 0.42%
描述
cbor2 provides encoding and decoding for the Concise Binary Object Representation (CBOR) serialization format. Starting in version 3.0.0 and prior to version 5.8.0, whhen a CBORDecoder instance is reused across multiple decode operations, values marked with the shareable tag (28) persist in memory and can be accessed by subsequent CBOR messages using the sharedref tag (29). This allows an attacker-controlled message to read data from previously decoded messages if the decoder is reused across trust boundaries. Version 5.8.0 patches the issue.
如何修補 CVE-2025-68131
要修補 CVE-2025-68131,請將受影響套件升級到下列已修補版本。
- —未列出修補版本
- —升級至 5.8.0 或更新版本
- —升級至 5.8.0 或更新版本
CVE-2025-68131 正在被利用嗎?
低 — EPSS 為 0.4%,目前沒有觀察到大規模利用活動。
受影響套件(3)
- from 0
- >= 3.0.0, < 5.8.0
- >= 3.0.0, < 5.8.0
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:P |
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |