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SCA: security update for thumbor (GHSA-cqjp-jf4r-h5q9)

high Tenable Cloud Security Plugin ID 445539

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - Thumbor is an open-source photo thumbnail service by globo.com. Prior to 7.8.0, Thumbor's
 filters:convolution(<matrix>, <columns>, <should_normalize>) filter passes the user-controlled <columns>
 value to a C extension (thumbor/ext/filters/_convolution.c) where it is used as a divisor (for % and /)
 without validating columns > 0. When columns=0, the C code triggers undefined behavior; on x86_64 this
 reliably results in a fatal divide-by-zero trap (SIGFPE) and crashes the Thumbor process, causing a remote
 denial of service. This issue is fixed in 7.8.0. (CVE-2026-53503)

Solution

Update the thumbor library and its related packages to version 7.8.0 or later.

See Also

https://github.com/advisories/GHSA-cqjp-jf4r-h5q9

Plugin Details

Severity: High

ID: 445539

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 8/1/2026

Updated: 8/1/2026

Risk Information

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2026-53503

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 7/31/2026

Vulnerability Publication Date: 7/31/2026

Reference Information

CVE: CVE-2026-53503