CVE-2026-43889General

LOWCVSS 6.5 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

Outline is a service that allows for collaborative documentation. Prior to 1.7.0, the shares.create API accepts both collectionId and documentId simultaneously and, when published=false, only verifies read access for each—skipping the "share" permission check. A subsequent shares.update authorizes publication using an OR policy (can share collection OR can share document), so an attacker who holds share permission on one unrelated collection can publish a share that exposes an arbitrary document they cannot legitimately share, making it publicly accessible to unauthenticated users. This vulnerability is fixed in 1.7.0.

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0.0/ 10 priority

Sources & remediation

Other references

Weakness type (CWE)

CWE-863

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

STABLE

Threat summary

3 mentions across 3 observed days
Momentum state: stable

What's happening

Technical details provided in 1 signal
General: 2 classified signals
Disclosure: 1 classified signal
Peaked 2d ago at 1 mentions (2026-05-12); latest day: 1
3 total mentions across 3 days

Deep dive

Activity timeline3 mentions / 3d

Signal classification2 categories

General

266.7%

Disclosure

133.3%

Referenced assets1 URL

By indicator

https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-43889

Classification over time

Date	Total	Labels

2026-05-12	1	Disclosure1
2026-05-14	1	General1
2026-08-27	1	General1

Full discourse3 posts

BugBunny.ai - Continuous AI Pentesting System@BugBunny_ai147d
General
66 CVE-2025-58434 CVE-2025-59057 CVE-2025-59790 CVE-2025-59792 CVE-2025-61622 CVE-2025-61686 CVE-2025-64756 CVE-2026-21884 CVE-2026-22807 CVE-2026-23630 CVE-2026-27471 CVE-2026-27806 CVE-2026-27955 CVE-2026-28215 CVE-2026-28217 CVE-2026-28351 CVE-2026-28361 CVE-2026-28384 CVE-2026-28396 CVE-2026-28398 CVE-2026-28444 CVE-2026-28445 CVE-2026-29093 CVE-2026-30973 CVE-2026-31888 CVE-2026-33016 CVE-2026-33037 CVE-2026-33038 CVE-2026-33039 CVE-2026-3351 CVE-2026-34037 CVE-2026-34158 CVE-2026-34167 CVE-2026-34170 CVE-2026-34171 CVE-2026-34198 CVE-2026-34532 CVE-2026-34573 CVE-2026-34574 CVE-2026-34595 CVE-2026-34746 CVE-2026-34748 CVE-2026-34749 CVE-2026-34750 CVE-2026-34972 CVE-2026-35214 CVE-2026-35412 CVE-2026-35413 CVE-2026-35441 CVE-2026-40165 CVE-2026-40293 CVE-2026-40302 CVE-2026-40304 CVE-2026-40454 CVE-2026-40914 CVE-2026-41131 CVE-2026-41590 CVE-2026-42883 CVE-2026-42884 CVE-2026-42885 CVE-2026-42886 CVE-2026-43888 CVE-2026-43889 CVE-2026-43998 CVE-2026-43999 CVE-2026-4800
Post summary
The text merely enumerates CVE identifiers with no additional context or details.
2176862729382.1K
3.1K followersView on X
BugBunny.ai - Continuous AI Pentesting System@BugBunny_ai42d
General
108 CVE-2025-58434 CVE-2025-59057 CVE-2025-59343 CVE-2025-59790 CVE-2025-59792 CVE-2025-61622 CVE-2025-61686 CVE-2025-62228 CVE-2025-62232 CVE-2025-64756 CVE-2026-21884 CVE-2026-22706 CVE-2026-22807 CVE-2026-23630 CVE-2026-24015 CVE-2026-24899 CVE-2026-27471 CVE-2026-27806 CVE-2026-27955 CVE-2026-28215 CVE-2026-28217 CVE-2026-28351 CVE-2026-28361 CVE-2026-28384 CVE-2026-28396 CVE-2026-28398 CVE-2026-28444 CVE-2026-28445 CVE-2026-29093 CVE-2026-30973 CVE-2026-31888 CVE-2026-33016 CVE-2026-33037 CVE-2026-33038 CVE-2026-33039 CVE-2026-33264 CVE-2026-33413 CVE-2026-3351 CVE-2026-34037 CVE-2026-34158 CVE-2026-34167 CVE-2026-34170 CVE-2026-34171 CVE-2026-34198 CVE-2026-34532 CVE-2026-34573 CVE-2026-34574 CVE-2026-34595 CVE-2026-34746 CVE-2026-34748 CVE-2026-34749 CVE-2026-34750 CVE-2026-34972 CVE-2026-35214 CVE-2026-35412 CVE-2026-35413 CVE-2026-35441 CVE-2026-40006 CVE-2026-40007 CVE-2026-40009 CVE-2026-40165 CVE-2026-40293 CVE-2026-40302 CVE-2026-40304 CVE-2026-40452 CVE-2026-40454 CVE-2026-40914 CVE-2026-41131 CVE-2026-41590 CVE-2026-42275 CVE-2026-42883 CVE-2026-42884 CVE-2026-42885 CVE-2026-42886 CVE-2026-43888 CVE-2026-43889 CVE-2026-43998 CVE-2026-43999 CVE-2026-44247 CVE-2026-44309 CVE-2026-44310 CVE-2026-44442 CVE-2026-44446 CVE-2026-44705 CVE-2026-44947 CVE-2026-45022 CVE-2026-45090 CVE-2026-45720 CVE-2026-45723 CVE-2026-45726 CVE-2026-46553 CVE-2026-46554 CVE-2026-47733 CVE-2026-4800 CVE-2026-48978 CVE-2026-49478 CVE-2026-50285 CVE-2026-52808 CVE-2026-52809 CVE-2026-53926 CVE-2026-53928 CVE-2026-53929 CVE-2026-53930 CVE-2026-56842 CVE-2026-60076 CVE-2026-60077 CVE-2026-75605 CVE-2026-9103
Post summary
The excerpt lists numerous CVE identifiers without further explanatory or technical information.
30124138.4K
4.0K followersView on X
Vulmon Vulnerability Feed@VulmonFeeds149d
Disclosure
CVE-2026-43889 Unauthorized Document Publication in Outline Prior to Version 1.7.0 https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-43889
Post summary
CVE-2026-43889 reports an unauthorized document publication flaw in Outline versions prior to 1.7.0, with no mention of PoC, exploitation, or mitigation.
0000050
4.0K followersView on X

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