CVE-2025-59350Network attack vector

Proxy credential disclosure via short-circuit comparison

Published Sep 17, 2025 · Updated Sep 17, 2025

Timing side channel in dragonflyoss Dragonfly before 2.1.0 allows remote attackers to infer Proxy basic-auth credentials through repeated requests. The Proxy basic-auth check compares the supplied username and password with short-circuiting string equality, leaking prefix-dependent execution time. No authentication or user interaction is required; successful recovery exposes the proxy password, but the resulting proxy capabilities are undisclosed.

CVSS severity5.3
Medium
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Timing side channel in dragonflyoss Dragonfly before 2.1.0 allows remote attackers to infer Proxy basic-auth credentials through repeated requests. The Proxy basic-auth check compares the supplied username and password with short-circuiting string equality, leaking prefix-dependent execution time. No authentication or user interaction is required; successful recovery exposes the proxy password, but the resulting proxy capabilities are undisclosed.

The record

CVE
CVE-2025-59350
Published
Sep 17, 2025
Updated
Sep 17, 2025
Vendor
DragonflyDB
Product
Dragonfly
Classifications
CWE-208, T1110.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 17, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 2.1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

DragonflyDB · Dragonflyversion=< 2.1.0

Published CVSS scores

5.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
2.7GitHub, Inc.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

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-208Observable Timing Discrepancy
T1110.001Password Guessing

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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