CVE-2026-6873
Signed cookie salt namespace collision in django.http.HttpRequest.get_signed_cookie
4.3
MEDIUM
CVSS 3.1
EPSS 0.24%
描述
An issue was discovered in Django 6.0 before 6.0.6 and 5.2 before 5.2.15. `django.http.HttpRequest.get_signed_cookie` in Django uses a non-injective salt derivation (concatenating the cookie name and salt argument), which allows a remote attacker to use a cookie in a context different from the one where it was signed, via distinct `(name, salt)` pairs that produce the same concatenation. Earlier, unsupported Django series (such as 5.0.x, 4.1.x, and 3.2.x) were not evaluated and may also be affected. Django would like to thank Peng Zhou for reporting this issue.
如何修補 CVE-2026-6873
要修補 CVE-2026-6873,請將受影響套件升級到下列已修補版本。
- —升級至 5.2.15 或更新版本
- —未列出修補版本
- —升級至 5.2.15 或更新版本
CVE-2026-6873 正在被利用嗎?
低 — EPSS 為 0.2%,目前沒有觀察到大規模利用活動。
受影響套件(3)
- >= 5.2.0, < 5.2.15, >= 6.0.0, < 6.0.6
- from 0
- >= 5.2, < 5.2.15, >= 6.0, < 6.0.6
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:P/PR:L/UI:N/VC:L/VI:N/VA:N/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 |
| osv | CVSS 3.1 | MEDIUM4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |