CVE WatchOct 20, 2026

CVE-2026-91157

Discourse is an open-source discussion platform. Prior to 2026.9.0, 2026.8.1, 2026.7.3, and 2026.1.9, sites with secure uploads enabled did

CVSS

7.5

High

EPSS

0.5%

p40

KEV

—

Exploit Today

0-100

Published: Oct 14, 2026 · Last modified: Oct 20, 2026 · CWE-200 · CWE-863

EPSS · 30d

0.5%EPSS · 30 days0.5%

2026-10-152026-10-20

Technical description

Discourse is an open-source discussion platform. Prior to 2026.9.0, 2026.8.1, 2026.7.3, and 2026.1.9, sites with secure uploads enabled did not reconcile existing upload security metadata when a previously public category became read-restricted or when category permissions changed during a bulk import. Media and attachments uploaded while the category was public retained a public accessibility flag and remained reachable by anonymous users through their short upload URLs, including uploads associated with deleted topics. This issue is fixed in versions 2026.9.0, 2026.8.1, 2026.7.3, and 2026.1.9.

Official references

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CVE-2026-70387—

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——0Exposed dangerous method or function and Incorrect Authorization vulnerability in OnePlus OxygenOS on Android. The olc2 logging HAL exposes a binder method that fork()'s and calls execl("/vendor/bin/sh", "sh", "-c", cmd, NULL) with a caller-supplied command string. The only authorization check is getCallingUid() == 0. Because SELinux policy grants binder access to this HAL to a wide client attribute, any uid-0 process in any of those domains (including dumpstate, which is reachable from an unprivileged app via Vulnerability 1) obtains arbitrary command execution. The spawned shell lands in u:r:vendor_qti_init_shell:s0 SELinux context via a policy type_transition, a domain holding all Linux capabilities. This issue affects OxygenOS: from 16.1.0 before 16.1.10.500, from 16.0.0 before 16.0.5.1200, and from 15.0.0 before 15.0.0.2000.18h CVE-2026-711959.9 CRI

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——0In OpenStack Manila before 23.0.1, multiple Manila API operations on public shares do not verify that the caller owns the share. The API controllers authorize operations against the caller's own project context, then load a foreign public share without re-authorizing against the share's actual owner. This affects the following operations: allow_access: grant data-plane read/write access to another tenant's share; deny_access: revoke the owner's existing access rules; update_access: escalate access level (e.g., ro to rw); create_share_backup: exfiltrate share data via a backup created under the attacker's project; soft_delete: move a foreign share to the recycle bin; restore: interfere with the owner's deletion workflow; export location metadata: create, update, and delete metadata on foreign export locations; access rule listing: disclose IPs, usernames, and CephFS keys. Any authenticated project member can exploit these operations on any public share. The share UUID is visible since the share is public.20h CVE-2026-1140755.4 MED

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——0Trigger.dev before 4.5.12 contains an authorization bypass vulnerability that allows holders of capability-restricted user-actor tokens to create alert channels by using the legacy personal access token helper. Attackers with a read-only UAT can POST to the project alertChannels endpoint to create production webhook channels, routing future deployment and error alerts to attacker-controlled infrastructure.1d CVE-2026-1140676.5 MED

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——0Trigger.dev 4.5.0 before 4.6.2 contains an improper authorization vulnerability in the PUT snapshot-url session endpoint that allows public session token holders to obtain presigned S3 write URLs. End users can overwrite their own session's durable chat snapshot to forge the agent's conversation history, since the route lacks a secret-key-only check.1d CVE-2026-1140597.5 HIG

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——0ArcadeDB before 26.10.1 contains a remote code execution vulnerability that allows authenticated users, including read-only reader role holders, to execute Groovy code because GremlinQueryEngine.command() lacks scripting authorization checks. Attackers can submit Gremlin commands to the POST /api/v1/command/{database} endpoint when the Groovy engine is enabled to run OS commands as the server process user.1d CVE-2026-1137063.5 LOW

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——0A vulnerability was identified in a2aproject a2a-rs up to 0.4.3. Impacted is an unknown function of the file a2a-server/src/task_store/inmemory.rs. The manipulation of the argument historyLength leads to information disclosure. The attack is possible to be carried out remotely. The identifier of the patch is 68f1b7e772ae5d6c9e581ac9b48bcddd10fe70eb. To fix this issue, it is recommended to deploy a patch.1d