Uncontrolled Recursion in oiio - CVE-2026-59156
Published: July 13, 2026
Vulnerability identifier: #VU137383
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-59156
CWE-ID: CWE-674
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: OpenImageIO
Affected software:
oiio
oiio
Detailed vulnerability description
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to uncontrolled recursion in FitsInput::read_fits_header() in src/fits.imageio/fitsinput.cpp when parsing a crafted FITS file header that lacks the mandatory END keyword. A remote attacker can trick the victim into opening a crafted file to cause a denial of service.
User interaction is required to open the crafted FITS file.
How to mitigate CVE-2026-59156
Install security update from vendor's website.