CVE-2024-41656 Sentry vulnerable to stored Cross-Site Scripting (XSS)

High 7.1 Published Updated

Attackers can inject malicious scripts via unsanitized integration payloads, affecting self-hosted Sentry users who should upgrade or enforce CSP.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2024-41656?

CVE-2024-41656 is a high-severity cross-site scripting vulnerability in getsentry sentry, published on 23 Jul 2024. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

Sentry is an error tracking and performance monitoring platform. Starting in version 10.0.0 and prior to version 24.7.1, an unsanitized payload sent by an Integration platform integration allows storing arbitrary HTML tags on the Sentry side with the subsequent rendering them on the Issues page. Self-hosted Sentry users may be impacted in case of untrustworthy Integration platform integrations sending external issues from their side to Sentry. A patch has been released in Sentry 24.7.1. For Sentry SaaS customers, no action is needed. This has been patched on July 23, and even prior to the fix, the exploitation was not possible due to the strict Content Security Policy deployed on sentry.io site. For self-hosted users, the maintainers of Sentry strongly recommend upgrading Sentry to the latest version. If it is not possible, one could enable CSP on one's self-hosted installation with `CSP_REPORT_ONLY = False` (enforcing mode). This will mitigate the risk of cross-site scripting.

Weakness: CWE-79

Which versions are affected by CVE-2024-41656?

3 open source packages ship an affected version, including sentry. It affects 1 product.

PackageAffectedFixed in
sentry PyPIFrom 10.0.024.7.1
sentry PyPIFrom 10.0.024.7.1
sentry PyPIFrom 10.0.024.7.1

Products include Sentry Sentry.

How do I fix CVE-2024-41656?

Upgrade sentry to 24.7.1 or later.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2024-41656 being exploited?

There is no known exploitation of CVE-2024-41656 in the wild and no public exploit code.

Sources

Also known as GHSA-fm88-hc3v-3www, PYSEC-2026-1914.

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