CVE-2026-53954

Bugsink is a self-hosted error tracking tool. Prior to version 2.2.2, Bugsink stores every set of custom tags supplied with an incoming event, allowing a caller with a valid project DSN to submit an unusually large tag set and force excessive tag-row writes. Because Bugsink uses a single-writer...

EUVD-2026-78891

Bugsink is a self-hosted error tracking tool. Prior to version 2.2.2, Bugsink stores every set of custom tags supplied with an incoming event, allowing a caller with a valid project DSN to submit an unusually large tag set and force excessive tag-row writes. Because Bugsink uses a single-writer...

CVE-2026-53954 Bugsink: DOS using large numbers of event tags

Bugsink is a self-hosted error tracking tool. Prior to version 2.2.2, Bugsink stores every set of custom tags supplied with an incoming event, allowing a caller with a valid project DSN to submit an unusually large tag set and force excessive tag-row writes. Because Bugsink uses a single-writer...

CVE-2026-53954

Bugsink , a self-hosted error tracking tool, is vulnerable to a temporary denial of service in versions prior to 2.2.2 . An attacker possessing a valid project DSN can submit an event with an unusually large number of custom tags, forcing excessive tag-row writes. Because Bugsink uses a single-wr...

CVE-2026-53954 Bugsink: DOS using large numbers of event tags

Bugsink is a self-hosted error tracking tool. Prior to version 2.2.2, Bugsink stores every set of custom tags supplied with an incoming event, allowing a caller with a valid project DSN to submit an unusually large tag set and force excessive tag-row writes. Because Bugsink uses a single-writer...

CVE-2026-53954 Bugsink: DOS using large numbers of event tags

Bugsink is a self-hosted error tracking tool. Prior to version 2.2.2, Bugsink stores every set of custom tags supplied with an incoming event, allowing a caller with a valid project DSN to submit an unusually large tag set and force excessive tag-row writes. Because Bugsink uses a single-writer...

CVE-2026-53954: Uncontrolled Resource Consumption

Bugsink is a self-hosted error tracking tool. Prior to version 2.2.2, Bugsink stores every set of custom tags supplied with an incoming event, allowing a caller with a valid project DSN to submit an unusually large tag set and force excessive tag-row writes. Because Bugsink uses a single-writer...

PYSEC-2026-2403 Bugsink: DOS using large numbers of event tags

Summary In affected versions, Bugsink stores every tag supplied with an incoming event. An event with an unusually large number of custom i.e. supplied by an attacker tags can therefore make ingestion spend more time than intended writing tag rows. Bugsink uses a single-writer database...

PYSEC-2026-2406 Bugsink: Issue bulk actions can affect another project’s issue if its UUID is known

Description Bugsink’s issue list supports bulk actions such as resolving or muting selected issues. In affected versions, the issue list view authorizes access through the project in the URL, but applies the requested bulk action to the submitted issue IDs without also requiring those issues to...

Bugsink affected by authenticated arbitrary file write in artifactbundle/assemble

Authenticated arbitrary file write in artifact bundle assembly SummaryAn authenticated file write vulnerability was identified in Bugsink 2.1.0 in the artifact bundle assembly flow.A user with a valid authentication token could cause the application to write attacker-controlled content to a...

PYSEC-2026-2404 Bugsink affected by authenticated arbitrary file write in artifactbundle/assemble

Authenticated arbitrary file write in artifact bundle assembly Summary An authenticated file write vulnerability was identified in Bugsink 2.1.0 in the artifact bundle assembly flow. A user with a valid authentication token could cause the application to write attacker-controlled content to a...

PT-2026-59084

Description Bugsink issue event pages accept a direct event identifier from the URL and, in affected versions, look up that event without also requiring it to belong to the issue in the URL. This is a project-boundary authorization issue: a logged-in user with access to one project can view anoth...

PT-2026-59080

Summary In affected versions, Bugsink stores every tag supplied with an incoming event. An event with an unusually large number of custom i.e. supplied by an attacker tags can therefore make ingestion spend more time than intended writing tag rows. Bugsink uses a single-writer database...

PT-2026-59079

Summary Bugsink before 2.2.0 resolved sourcemaps and debug files by debug ID without scoping that lookup to the project that owned the uploaded metadata. An authenticated user with access to one project could cause event processing in that project to use sourcemap/debug-file metadata uploaded for...

PT-2026-59081

Authenticated arbitrary file write in artifact bundle assembly Summary An authenticated file write vulnerability was identified in Bugsink 2.1.0 in the artifact bundle assembly flow. A user with a valid authentication token could cause the application to write attacker-controlled content to a...

Bugsink is vulnerable to unauthenticated remote DoS via crafted Brotli input (via CPU)

ImpactIn affected versions, a specially crafted Brotli-compressed envelope can cause Bugsink to spend excessive CPU time in decompression, leading to denial of service.This can be done if the DSN is known, which it is in many common setups JavaScript, Mobile Apps. PatchesPatched in Bugsink 2.0.6...

PYSEC-2026-1227 Bugsink is vulnerable to unauthenticated remote DoS via crafted Brotli input (via CPU)

Impact In affected versions, a specially crafted Brotli-compressed envelope can cause Bugsink to spend excessive CPU time in decompression, leading to denial of service. This can be done if the DSN is known, which it is in many common setups JavaScript, Mobile Apps. Patches Patched in Bugsink 2.0...

PYSEC-2026-1225 Bugsink is vulnerable to unauthenticated remote DoS via crafted Brotli input

Impact In affected versions, brotli "bombs" highly compressed brotli streams, such as many zeros can be sent to the server. Since the server will attempt to decompress these streams before applying various maximums, this can lead to exhaustion of the available memory and thus a Denial of Service...

Bugsink is vulnerable to Stored XSS via Pygments fallback in stacktrace rendering

SummaryAn unauthenticated attacker who can submit events to a Bugsink project can store arbitrary JavaScript in an event.The payload executes only if a user explicitly views the affected Stacktrace in the web UI. Details When Pygments returns more lines than it was given a known upstream quirk th...

PYSEC-2026-301 Bugsink is vulnerable to Stored XSS via Pygments fallback in stacktrace rendering

Summary An unauthenticated attacker who can submit events to a Bugsink project can store arbitrary JavaScript in an event. The payload executes only if a user explicitly views the affected Stacktrace in the web UI. Details When Pygments returns more lines than it was given a known upstream quirk...