CVE-2026-23868
Double-Free Vulnerability in Giflib's GifMakeSavedImage Component
Publication date: 2026-03-10
Last updated on: 2026-05-07
Assigner: Facebook, Inc.
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| giflib_project | giflib | From 5.0.0 (inc) to 6.1.1 (inc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-415 | The product calls free() twice on the same memory address. |
Attack-Flow Graph
AI Powered Q&A
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
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What immediate steps should I take to mitigate this vulnerability?
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How can this vulnerability be detected on my network or system? Can you suggest some commands?
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Can you explain this vulnerability to me?
This vulnerability in Giflib is a double-free issue caused by a shallow copy operation in the function GifMakeSavedImage combined with incorrect error handling.
A double-free vulnerability occurs when a program attempts to free the same memory location twice, which can lead to undefined behavior or exploitation.
The conditions required to trigger this vulnerability are difficult to meet but may be possible.
How can this vulnerability impact me? :
Exploitation of a double-free vulnerability can lead to program crashes, memory corruption, or potentially allow an attacker to execute arbitrary code.
However, since the conditions to trigger this vulnerability are difficult, the risk may be limited but should not be ignored.