CVE-2026-81643— AshGraphql 批量订阅访问控制失效漏洞
一分钟漏洞结论
影响对象
ash-project ash_graphql
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
ash_graphql 中的授权不当漏洞 ash_graphql 会向订阅者投递那些他们无权查看的记录的 GraphQL 订阅消息。 在 AshGraphql.Subscription.Batcher 中，do_send/5 解析批处理中的第一条通知，并通过 should_send?/1 对其进行过滤，该过滤器会丢弃错误代码为 forbidden（禁止访问）或 not_found（未找到），或未携带错误代码的结果，从而确保不向订阅者暴露未经授权的结果。然而，同一批次中剩余的通知是从进程字典中读取的，重新经过处理管道
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一、 漏洞 CVE-2026-81643 基础信息
漏洞信息
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Vulnerability Title
Broken access control in AshGraphql subscription batcher applies authorization suppression to only the first notification
来源: CVE Program / CVE List V5
Vulnerability Description
Incorrect Authorization vulnerability in ash-project ash_graphql delivers GraphQL subscription payloads for records a subscriber is not authorized to see.
In AshGraphql.Subscription.Batcher, do_send/5 resolves the first notification of a batch and filters it with should_send?/1, which drops results whose errors are coded forbidden or not_found or carry no code, precisely so that unauthorized results are not disclosed. The remaining notifications in the batch are read from the process dictionary, re-run through the pipeline, and appended to the outgoing results without that filter. They reach pubsub.publish_subscription/2, and the not is_nil(record) guard drops only nil records, not error-carrying results. Any two qualifying notifications arriving within the default one-second batch interval suffice, and batching is the default path. The fix applies should_send?/1 to the whole batch.
This issue affects ash_graphql: from 1.4.0 before 1.11.0.
来源: CVE Program / CVE List V5
CVSS Information
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
来源: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
来源: CVE Program / CVE List V5
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| ash-project | ash_graphql | 1.4.0 ~ 1.11.0 |
cpe:2.3:a:ash-project:ash_graphql:*:*:*:*:*:*:*:*
|
|
| ash-project | ash_graphql | 3cb2c9870d050c7c4bba6c211aaed97d732f7e81 ~ e8e67f39add2ce0771e6db5f086afe68ba212c57 |
cpe:2.3:a:ash-project:ash_graphql:*:*:*:*:*:*:*:*
|
|
二、漏洞 CVE-2026-81643 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2026-81643 其他参考 (4)
-
https://github.com/ash-project/ash_graphql/security/advisories/GHSA-j684-hch4-q888 vendor-advisory related
同批安全公告 · ash-project · 2026-08-30 · 共 20 条
| CVE-2026-81636 | 8.7 HIGH | AshGraphql 分页参数复杂度过高导致拒绝服务漏洞 |
| CVE-2026-78699 | 7.2 HIGH | AshPostgres rename_tenant 租户访问漏洞 |
| CVE-2026-80223 | 7.1 HIGH | AshGraphql 跨租户订阅信息泄露漏洞 |
| CVE-2026-78693 | 6.9 MEDIUM | AshGraphql 敏感信息泄露漏洞 |
| CVE-2026-81633 | 6.9 MEDIUM | AshGraphql 未知类型段导致 KeyError |
| CVE-2026-77454 | 5.9 MEDIUM | AshSql 2.49 静默丢弃存在性过滤漏洞 |
| CVE-2026-81319 | 5.9 MEDIUM | AshCloak 不安全反序列化导致节点拒绝服务漏洞 |
| CVE-2026-75847 | 5.9 MEDIUM | AshPaperTrail 敏感属性存储于公开变更映射 |
| CVE-2026-78228 | 5.9 MEDIUM | Ash Oban 远程服务拒绝漏洞 |
| CVE-2026-78038 | 5.9 MEDIUM | AshOban 参数注入覆盖主键与租户漏洞 |
| CVE-2026-77970 | 5.9 MEDIUM | AshPaperTrail 嵌入式嵌套字段未脱敏漏洞 |
| CVE-2026-82367 | 2.3 LOW | AshGraphql 订阅分发器重入同步发布漏洞 |
| CVE-2026-80227 | 2.1 LOW | Ash SQL 字符串修剪逻辑与内存处理不一致 |
| CVE-2026-81316 | 2.1 LOW | AshSql 同名聚合混淆漏洞 |
| CVE-2026-78691 | 2.1 LOW | AshSql 字符串搜索 LIKE 通配符注入漏洞 |
| CVE-2026-81322 | 2.1 LOW | AshCloak 明文信息泄露漏洞 |
| CVE-2026-81318 | 2.1 LOW | AshSql 不同租户数据泄露漏洞 |
| CVE-2026-77846 | 2.1 LOW | AshSqlite JSON路径注入漏洞 |
| CVE-2026-77831 | 2.1 LOW | AshPaperTrail全量差异列表算法复杂度拒绝服务 |
IV. Related Vulnerabilities
V. Comments for CVE-2026-81643
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