CVE-2026-53776 漏洞深度分析

漏洞概述

CVE 编号： CVE-2026-53776
CVSS 评分： 9.3（CRITICAL）
CVSS 向量： CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/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
CWE 分类： CWE-613
漏洞状态： Deferred
发布时间： 2026-06-16T17:16:42.620
最后更新： 2026-07-14T22:17:14.537

漏洞描述

Perry before 0.5.1166 contains a JWT validation vulnerability that allows remote attackers to bypass token expiration by exploiting the unconditional setting of validate_exp = false in the verify_decode helper within the stdlib JWT verification path. Attackers in possession of a previously issued bearer token can present expired tokens to any jwt.verify() call and retain authenticated access indefinitely, bypassing force-expired sessions such as user logout or administrative revocation.

影响分析

此漏洞的具体影响取决于实际利用场景。"

修复建议

1. 及时关注厂商发布的安全更新和补丁
2. 升级受影响组件到最新版本
3. 如无法立即升级，参考厂商提供的临时缓解措施
4. 加强网络访问控制和监控

参考链接

1. https://github.com/PerryTS/perry/releases/v0.5.1166
2. https://github.com/PerryTS/perry/security/advisories/GHSA-5324-c68v-8w62
3. https://www.vulncheck.com/advisories/perry-jwt-expiration-bypass-via-verify-decode