Import Source
https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-77457.json
JSON Data
https://api.test.osv.dev/v1/vulns/AZL-77457
Upstream
Published
2026-02-10T18:16:37Z
Modified
2026-04-01T05:05:11.205865Z
Summary
CVE-2026-25646 affecting package fltk 1.3.5-4
Details

LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. Prior to 1.6.55, an out-of-bounds read vulnerability exists in the pngsetquantize() API function. When the function is called with no histogram and the number of colors in the palette is more than twice the maximum supported by the user's display, certain palettes will cause the function to enter into an infinite loop that reads past the end of an internal heap-allocated buffer. The images that trigger this vulnerability are valid per the PNG specification. This vulnerability is fixed in 1.6.55.

References

Affected packages

Azure Linux:2 / fltk

Package

Name
fltk
Purl
pkg:rpm/azure-linux/fltk

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Last affected
1.3.5-4

Database specific

source
"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-77457.json"