CVE-2026-33582 Apache Answer: Uploading specially crafted TIFF files causes an Out-of-Memory error
An authenticated user can crash the Apache Answer server by uploading a specially crafted TIFF file that causes an out-of-memory error.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-33582?
CVE-2026-33582 is a medium-severity denial of service vulnerability in Apache Answer, published on 9 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Unrestricted Upload of File with Dangerous Type vulnerability in Apache Answer.
This issue affects Apache Answer: through 2.0.0.
A crafted TIFF image could trigger excessive memory allocation during image decoding, allowing an authenticated user to cause the server process to crash. Users are recommended to upgrade to version 2.0.1, which fixes the issue.
Weakness: CWE-434
Which versions are affected by CVE-2026-33582?
3 open source packages ship an affected version, including github.com/apache/incubator-answer and github.com/apache/answer. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
github.com/apache/incubator-answer Go | All versions | 1.7.2-0.20260325113131-cfc3e54f30cc |
github.com/apache/incubator-answer Go | All versions | 1.7.2-0.20260325113131-cfc3e54f30cc |
github.com/apache/answer Go | All versions | 1.7.2-0.20260325113131-cfc3e54f30cc |
Products include Apache Answer.
How do I fix CVE-2026-33582?
Upgrade github.com/apache/incubator-answer to 1.7.2-0.20260325113131-cfc3e54f30cc or later.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-33582 being exploited?
There is no known exploitation of CVE-2026-33582 in the wild and no public exploit code.
Other vulnerabilities in Apache Answer
- CVE-2026-60053 Apache Answer: Residual Administrative API Key Access After Role or Account Revocation
- CVE-2024-22393 Apache Answer: Pixel Flood Attack by uploading the large pixel file
- CVE-2026-48834 Apache Answer: Denial of service via crafted Accept-Language header parsing
- CVE-2026-48911 Apache Answer: Unauthenticated OAuth Email-Binding Account Takeover via Existing User Confirmation Flow
- CVE-2026-60023 Apache Answer: Unauthorized disclosure of deleted or pending answer content
Sources
Also known as GHSA-v553-g2w6-295p, GO-2026-6153.