CVE-2026-52490

An issue in libtiff 85f2ac8e0b01cb7db2bbecf4a3b891bdbef67938 allows an attacker to execute arbitrary code via the process_command_opts() function in tools/tiffcrop.c

CVE-2026-52490 is fixed in 8 products on 1 platform, first by DEBIAN-CVE-2026-52490, released August 27, 2026. It is not reported as exploited. Patch Radar priority: Urgent.

Urgent

CVSS

9.8

Critical

Exploitation

None reported

No vendor assessment

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0073

54th percentile

An issue in libtiff 85f2ac8e0b01cb7db2bbecf4a3b891bdbef67938 allows an attacker to execute arbitrary code via the process_command_opts() function in tools/tiffcrop.c

Where it's fixed

Product	Fixed in	Fix	Released
Linux
libtiff · RHEL 8	0:4.0.9-39.el8_10	RHSA-2026:69095	Sep 22, 2026
libtiff · almalinux 8	4.0.9-39.el8_10	ALSA-2026:69095	Sep 21, 2026
libtiff · amzn 2023	4.4.0-4.amzn2023.0.28	ALAS2023-2026-2156	Sep 14, 2026
libtiff · ol 8	0:4.0.9-39.el8_10	ELSA-2026-69095	Sep 23, 2026
libtiff · rocky 8	0:4.0.9-39.el8_10	RLSA-2026:69095	Sep 22, 2026
libtiff-debuginfo · amzn 2023	4.4.0-4.amzn2023.0.28	ALAS2023-2026-2156	Sep 14, 2026
libtiff-debugsource · amzn 2023	4.4.0-4.amzn2023.0.28	ALAS2023-2026-2156	Sep 14, 2026
libtiff-devel · RHEL 8	0:4.0.9-39.el8_10	RHSA-2026:69095	Sep 22, 2026
libtiff-devel · almalinux 8	4.0.9-39.el8_10	ALSA-2026:69095	Sep 21, 2026
libtiff-devel · amzn 2023	4.4.0-4.amzn2023.0.28	ALAS2023-2026-2156	Sep 14, 2026
libtiff-devel · ol 8	0:4.0.9-39.el8_10	ELSA-2026-69095	Sep 23, 2026
libtiff-static · amzn 2023	4.4.0-4.amzn2023.0.28	ALAS2023-2026-2156	Sep 14, 2026
libtiff-tools · RHEL 8	0:4.0.9-39.el8_10	RHSA-2026:69095	Sep 22, 2026
libtiff-tools · almalinux 8	4.0.9-39.el8_10	ALSA-2026:69095	Sep 21, 2026
libtiff-tools · amzn 2023	4.4.0-4.amzn2023.0.28	ALAS2023-2026-2156	Sep 14, 2026
libtiff-tools · ol 8	0:4.0.9-39.el8_10	ELSA-2026-69095	Sep 23, 2026
libtiff-tools-debuginfo · amzn 2023	4.4.0-4.amzn2023.0.28	ALAS2023-2026-2156	Sep 14, 2026
tiff · Debian 14	4.7.2-1	DEBIAN-CVE-2026-52490	Aug 27, 2026

Details

Published
August 24, 2026
Weakness
Improper Control of Generation of Code ('Code Injection')
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-52490

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