CVE-2026-86111— BookWyrm through 0.9.1 Insecure Direct Object Reference in EditStatus Exposes Followers-Only and Direct Statuses
Quick assessment
Affected
bookwyrm-social bookwyrm
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
BookWyrm 0.9.1 及更早版本在状态编辑端点中未能正确验证用户可见性权限，允许经过身份验证的攻击者通过枚举连续的状态 ID 来读取“仅粉丝可见”和“私信”类型的评论。攻击者可以通过编辑视图访问受限状态的原始内容，从而绕过这些消息类型所记载的隐私保护机制。
Possible ATT&CK Techniques 1 AI
T1029 · Scheduled TransferAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| bookwyrm-social | bookwyrm | ≤ 0.9.1 |
affected |
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I. Basic Information for CVE-2026-86111
Vulnerability Information
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Vulnerability Title
BookWyrm through 0.9.1 Insecure Direct Object Reference in EditStatus Exposes Followers-Only and Direct Statuses
Source: CVE Program / CVE List V5
Vulnerability Description
BookWyrm through 0.9.1 fails to validate user visibility permissions in the status edit endpoint, allowing authenticated attackers to read followers-only and direct-message reviews by enumerating sequential status IDs. Attackers can access the raw content of restricted statuses through the edit view, bypassing the privacy protections documented for these message types.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| bookwyrm-social | bookwyrm | 0 ~ 0.9.1 | - |
|
II. Public POCs for CVE-2026-86111
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2026-86111 (1)
Vendor Advisories for CVE-2026-86111 (1)
Proof of Concept for CVE-2026-86111 (1)
Vendor Pages for CVE-2026-86111 (1)
Same Patch Batch · bookwyrm-social · 2026-09-05 · 3 CVEs total
| CVE-2026-86113 | 6.5 MEDIUM | BookWyrm through 0.9.1 Insecure Direct Object Reference in edit-readthrough Allows Tamperi |
| CVE-2026-86112 | 5.4 MEDIUM | BookWyrm through 0.9.1 Missing Authorization on the Favorite and Unfavorite Endpoints |
IV. Related Vulnerabilities
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Same weakness: CWE-639
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V. Comments for CVE-2026-86111
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