CVE-2023-3566Public exploitNetwork attack vector

Authenticated resource exhaustion via oversized profile name

Published Jul 8, 2023 · Updated Aug 2, 2024

Resource exhaustion in wallabag 2.5.4 allows remote authenticated users to consume server memory via an oversized profile name. The /config Profile Config accepts Name values of at least one million characters without a length limit and allocates resources for the submitted value. A valid account and profile access are required, and the published material does not establish a repeatable crash or memory corruption.

CVSS severity6.5
Medium
EPSS probability1.37%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Resource exhaustion in wallabag 2.5.4 allows remote authenticated users to consume server memory via an oversized profile name. The /config Profile Config accepts Name values of at least one million characters without a length limit and allocates resources for the submitted value. A valid account and profile access are required, and the published material does not establish a repeatable crash or memory corruption.

The record

CVE
CVE-2023-3566
Published
Jul 8, 2023
Updated
Aug 2, 2024
Vendor
wallabag
Product
wallabag
Classifications
CWE-770, T1499.003
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 8, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=2.5.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

wallabag · wallabagversion=2.5.4

Published CVSS scores

6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
2.7VulDBAV:A/AC:L/Au:S/C:N/I:N/A:P
3.5VulDBCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-770Allocation of Resources Without Limits or Throttling
T1499.003Endpoint Denial of Service: Application Exhaustion Flood

Public exploit references

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

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo