hao/websafe-kb
1
0
派生 0
代码 工单 合并请求 1 工作流 软件包 项目 发布 百科 活动
文件
bfd7d732ae35bb669a94dcdad31fa0b755324bfd
websafe-kb/07-framework-security/frameworks/sveltekit/cases/sveltekit-ghsa-vrhm-gvg7-fpcf.md

154 行
7.4 KiB
Markdown
原始文件 Blame 文件历史

---
title: " Memory exhaustion in SvelteKit remote form deserialization (experimental only)"
system_id: "sveltekit"
category: "frameworks"
advisory_mode: "core"
published_date: "2026-02-19T20:29:42Z"
updated_date: "2026-02-22T23:25:49.392878Z"
severity: "medium"
exploit_status: "unknown"
source_confidence: "official"
verification_status: "triage-manual"
verification_mode: "synthetic"
artifact_mode: "synthetic"
last_run_id: ""
target_types:
- "lab-local"
- "lab-public"
- "authorized-third-party"
allow_public_validation: "yes, with ownership or explicit authorization"
authorization_prerequisite: "asset ownership proof or explicit written authorization"
minimal_validation: "read-only probe, controlled payload, reversible test"
aliases:
- "GHSA-vrhm-gvg7-fpcf"
affected_versions:
- "introduced=2.49.0, fixed<2.52.2"
fixed_versions:
- "2.52.2"
entity_refs:
- "sveltekit:system:root-system"
- "sveltekit--package--sveltejs-kit:package:affected-component"
secure_code_topics:
- "authz-server-side-recheck"
- "token-cookie-storage"
- "deserialization-safety"
primary_source: "https://github.com/sveltejs/kit/security/advisories/GHSA-vrhm-gvg7-fpcf"
---
# Memory exhaustion in SvelteKit remote form deserialization (experimental only)
## 本地实证状态
- 实证状态: `triage-manual`
- 实证方式: `synthetic`
- Artifact 模式: `synthetic`
- 最近运行: `-`
- 浏览器证据: `missing`
- Run Bundle: `-`
## 事件层
- Canonical ID: `sveltekit--GHSA-vrhm-gvg7-fpcf`
- 系统: `sveltekit`
- 严重度: `medium`
- 来源置信度: `official`
- 官方主源: https://github.com/sveltejs/kit/security/advisories/GHSA-vrhm-gvg7-fpcf
- 影响版本: `introduced=2.49.0, fixed<2.52.2`
- 修复版本: `2.52.2`
## 对象与版本映射
- Advisory Scope: `package`
- 影响对象: `sveltejs / kit`
- Entity Refs: `sveltekit, sveltekit--package--sveltejs-kit`
- 版本置信度: `high`
- 版本缺口: `-`
- 版本证据源: `https://github.com/sveltejs/kit/security/advisories/GHSA-vrhm-gvg7-fpcf, https://github.com/sveltejs/kit/commit/f47c01bd8100328c24fdb8522fe35913b0735f35, https://github.com/sveltejs/kit, https://github.com/sveltejs/kit/releases/tag/@sveltejs/kit@2.52.2`
## 受控验证流程
- Workflow ID: `sveltekit--GHSA-vrhm-gvg7-fpcf--workflow`
- 漏洞家族: `deserialization`
- 入口面: `serialized-input-boundary`
- 需要角色: `application-integrator`
- 触发向量: 对 `deserialization` 家族入口投递最小化、可审计、可回滚的受控输入，比较修复前后差异。
- 请求/页面入口: `/api/import, /queue/consumer, /session/restore`
- 输入形态: 提交受控序列化样本，验证类型恢复与危险对象实例化。
- 预期不安全行为: 反序列化恢复出危险类型或触发危险行为。
## 其他来源
- https://github.com/sveltejs/kit/commit/f47c01bd8100328c24fdb8522fe35913b0735f35
- https://github.com/sveltejs/kit
- https://github.com/sveltejs/kit/releases/tag/@sveltejs/kit@2.52.2
## 证据点与补丁验证
### 服务端证据点
- 应用日志中的命中路径、鉴权决策和异常栈
- 反向代理或边界层日志中的请求头、来源 IP 与路由决策
### 浏览器证据点
- 基线截图与攻击后截图的 DOM/视觉差异
- console、network 与 response metadata 中的异常信号
### 数据库/文件系统证据点
- 数据库中新增/越权读取的测试数据
- 文件系统中新增上传样本、缓存条目或越权读取痕迹
### 检测信号
- WAF / reverse proxy 异常日志、访问日志和告警
- 应用审计日志中的权限错误、重定向异常、模板渲染或上传落盘事件
### 补丁验证步骤
- 确认目标版本从 `introduced=2.49.0, fixed<2.52.2` 升级或回移到 `2.52.2`。
- 保留同一组受控输入，在修复前后分别执行并比对响应、日志与浏览器证据。
- 确认修复后仅保留预期业务行为，不再触发越权、回显、异常渲染或错误请求。
- 补充 `deserialization` 族自动化回归，避免同类路径在插件、主题或代理链中回归。
### 实验安全备注
- 只使用回环地址、哨兵目标、无害样本或可回滚测试数据。
- 禁止造成持久破坏、越权下载真实数据或不可回滚 side effect。
- 如需浏览器证据，保留 baseline / proof 两份快照以及 console / network 记录。
## 实验层
- 仅用于自有资产、测试环境或已明确授权目标。
- 允许公网可达目标，但必须满足资产归属或明确授权前提。
- 最小化验证方式: 最小化验证、只读探测、可审计回显、受控注入。
- 若该案例涉及插件、模块或扩展，应同时检查供应链与升级策略。
- 禁止场景: 无归属证明或无明确授权的公网目标；知名公共网站或与测试无关的第三方资产；会造成持久破坏、数据越权下载或不可回滚影响的动作
## 修复示例
- [javascript-typescript:authz-server-side-recheck](/Users/x/websafe/05-defense/secure-code/javascript-typescript/authz-server-side-recheck.md)
- [nodejs:authz-server-side-recheck](/Users/x/websafe/05-defense/secure-code/nodejs/authz-server-side-recheck.md)
- [java:authz-server-side-recheck](/Users/x/websafe/05-defense/secure-code/java/authz-server-side-recheck.md)
- [php:authz-server-side-recheck](/Users/x/websafe/05-defense/secure-code/php/authz-server-side-recheck.md)
- [python:authz-server-side-recheck](/Users/x/websafe/05-defense/secure-code/python/authz-server-side-recheck.md)
- [ruby:authz-server-side-recheck](/Users/x/websafe/05-defense/secure-code/ruby/authz-server-side-recheck.md)
- [csharp:authz-server-side-recheck](/Users/x/websafe/05-defense/secure-code/csharp/authz-server-side-recheck.md)
- [go:authz-server-side-recheck](/Users/x/websafe/05-defense/secure-code/go/authz-server-side-recheck.md)
- [javascript-typescript:token-cookie-storage](/Users/x/websafe/05-defense/secure-code/javascript-typescript/token-cookie-storage.md)
- [nodejs:token-cookie-storage](/Users/x/websafe/05-defense/secure-code/nodejs/token-cookie-storage.md)
- [java:token-cookie-storage](/Users/x/websafe/05-defense/secure-code/java/token-cookie-storage.md)
- [php:token-cookie-storage](/Users/x/websafe/05-defense/secure-code/php/token-cookie-storage.md)
- [python:token-cookie-storage](/Users/x/websafe/05-defense/secure-code/python/token-cookie-storage.md)
- [ruby:token-cookie-storage](/Users/x/websafe/05-defense/secure-code/ruby/token-cookie-storage.md)
- [csharp:token-cookie-storage](/Users/x/websafe/05-defense/secure-code/csharp/token-cookie-storage.md)
- [go:token-cookie-storage](/Users/x/websafe/05-defense/secure-code/go/token-cookie-storage.md)
- [javascript-typescript:deserialization-safety](/Users/x/websafe/05-defense/secure-code/javascript-typescript/deserialization-safety.md)
- [nodejs:deserialization-safety](/Users/x/websafe/05-defense/secure-code/nodejs/deserialization-safety.md)
- [java:deserialization-safety](/Users/x/websafe/05-defense/secure-code/java/deserialization-safety.md)
- [php:deserialization-safety](/Users/x/websafe/05-defense/secure-code/php/deserialization-safety.md)
- [python:deserialization-safety](/Users/x/websafe/05-defense/secure-code/python/deserialization-safety.md)
- [ruby:deserialization-safety](/Users/x/websafe/05-defense/secure-code/ruby/deserialization-safety.md)
- [csharp:deserialization-safety](/Users/x/websafe/05-defense/secure-code/csharp/deserialization-safety.md)
- [go:deserialization-safety](/Users/x/websafe/05-defense/secure-code/go/deserialization-safety.md)
在新工单中引用 查看 Git Blame 复制永久链接