Vulnerability · Published Sep 17, 2025 · Assigned by GitHub_M

CVE-2025-59350Timing attacks against Proxy’s basic authentication are possible

Low 2.7

In plain English

A low-severity security flaw in dragonfly from dragonflyoss. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 27% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 4.0)2.7Low

Exploit odds (30 days)0.3%top 72.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Dragonfly is an open source P2P-based file distribution and image acceleration system. Prior to 2.1.0, the access control mechanism for the Proxy feature uses simple string comparisons and is therefore vulnerable to timing attacks. An attacker may try to guess the password one character at a time by sending all possible characters to a vulnerable mechanism and measuring the comparison instruction’s execution times. This vulnerability is fixed in 2.1.0.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Go	d7y.io/dragonfly/v2	2.1.0	GHSA-c2fc-9q9c-5486
Go	d7y.io/dragonfly/v2	2.1.0	GO-2025-3972
Go	github.com/dragonflyoss/dragonfly	2.1.0	GHSA-c2fc-9q9c-5486
Go	github.com/dragonflyoss/dragonfly	no fix listed	GO-2025-3972

Affected products (as reported)

Vendor	Product	Versions
dragonflyoss	dragonfly	< 2.1.0

Weakness: CWE-208 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U

References

https://github.com/dragonflyoss/dragonfly/security/advisories/GHSA-c2fc-9q9c-5486 x_refsource_CONFIRM
https://github.com/dragonflyoss/dragonfly/blob/main/docs/security/dragonfly-comprehensive-report-2023.pdf x_refsource_MISC