CVE-2024-52801Network attack vector

Authenticated data access via predictable session cookies

Published Nov 29, 2024 · Updated Dec 2, 2024

Session management weakness in SFTPGo 2.3.0 through 2.6.3 allows remote authenticated users to access other users' data via cookie guessing. The OpenID Connect redirect handler in internal/httpd/oidc.go assigns xid.New().String() to each session cookie, producing predictable identifiers instead of cryptographically secure random values. A valid account and enabled OpenID Connect login are required; a guessed victim cookie grants access to that victim's web session and stored data.

CVSS severity5.3
Medium
EPSS probability0.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Session management weakness in SFTPGo 2.3.0 through 2.6.3 allows remote authenticated users to access other users' data via cookie guessing. The OpenID Connect redirect handler in internal/httpd/oidc.go assigns xid.New().String() to each session cookie, producing predictable identifiers instead of cryptographically secure random values. A valid account and enabled OpenID Connect login are required; a guessed victim cookie grants access to that victim's web session and stored data.

The record

CVE
CVE-2024-52801
Published
Nov 29, 2024
Updated
Dec 2, 2024
Vendor
SOFTWARE ENGINEERING S.R.L.
Product
SFTPGo
Classifications
CWE-327, T1550.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 29, 2024CVE publishedPublication date reported by the CVE source.
  2. Dec 2, 2024Record 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=>= 2.3.0, < 2.6.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

SOFTWARE ENGINEERING S.R.L. · SFTPGoversion=>= 2.3.0, < 2.6.4

Published CVSS scores

5.3GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-327Use of a Broken or Risky Cryptographic Algorithm
T1550.004Use Alternate Authentication Material: Web Session Cookie

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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