What is CVE-2026-47121?

CVE-2026-47121 is a medium-severity vulnerability in Sparkle-project Sparkle, classified under Path Traversal. CVSS score: 6.1/10. Published 2026-07-21.

How severe is CVE-2026-47121?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Path Traversal in Sparkle-project Sparkle

CVE-2026-47121

Sparkle is a software update framework for macOS. Prior to version 2.9.2, `Autoupdate/SUBinaryDeltaApply.m` enforces `relativePath.pathComponents containsObject:@".."` and rejects writes whose immediate parent directory IS itself a symboli…

Vulnerability class: Path Traversal (Directory Traversal)

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:N/I:H/A:N.

Affected products

Sparkle-project Sparkle — versions < 2.9.2

Weakness classification (CWE)

CWE-22 — Path Traversal
CWE-59 — Improper Link Resolution Before File Access

References

security-advisories@github.com (x_refsource_CONFIRM)
security-advisories@github.com (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-47121?: CVE-2026-47121 is a medium-severity vulnerability in Sparkle-project Sparkle, classified under Path Traversal. CVSS score: 6.1/10. Published 2026-07-21.
How severe is CVE-2026-47121?: Medium severity. CVSS v3 base score is 6.1 out of 10.