CVE-2024-12864: A Denial of Service (DoS) vulnerability was discovered in the file upload feature of netease-youdao/qanything

This week

HIGH 7.5REMOTEDOWNGRADE

CVE-2024-12864 is a high-severity flaw (CVSS 7.5) affecting qanything. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A Denial of Service (DoS) vulnerability was discovered in the file upload feature of netease-youdao/qanything version v2.0.0. The vulnerability is due to improper handling of form-data with a large filename in the file upload request. An attacker can exploit this vulnerability by sending a large filename, causing the server to become overwhelmed and unavailable for legitimate users. This attack does not require authentication, making it highly sc

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.9% (top 41%)
CISA exploited list	No
Weakness	CWE-400
Published	2025-03-20
Last modified	2026-06-17

Publisher (CNA): huntr.dev · Vendor: youdao

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-03-20 10:15 UTCPublished CVE record published
2026-06-17 07:00 UTCUpdated Record last modified

youdao qanything DOWNGRADE

Affected: 2.0.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.0.0

1. Check installed version

apt-cache policy qanything || rpm -q qanything || qanything --version

2. No fixed release: DOWNGRADE to a release before 2.0.0 (Debian / Ubuntu)

apt-cache madison qanything sudo apt install qanything=<VERSION_BEFORE_2.0.0> sudo apt-mark hold qanything

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list qanything sudo dnf downgrade qanything-<VERSION_BEFORE_2.0.0> sudo dnf versionlock add qanything

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2024-12864?

qanything: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2024-12864 being exploited?

CVE-2024-12864 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2024-12864 affect?

CVE-2024-12864 affects qanything. Severity is high (CVSS 7.5). A Denial of Service (DoS) vulnerability was discovered in the file upload feature of netease-youdao/qanything version v2.0.0. The vulnerability is due to improper handling of form-data with a large filename in the file upload request. An at

How urgent is CVE-2024-12864?

Priority 51/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2024-8027 MEDIUM 6.1 MITIGATE A stored Cross-Site Scripting (XSS) vulnerability exists in netease-youdao/QAnything
CVE-2024-8026 HIGH 8.1 UPGRADE A Cross-Site Request Forgery (CSRF) vulnerability exists in the backend API of netease-youdao/qanything, as of
CVE-2024-8024 HIGH 7.5 DOWNGRADE A CORS misconfiguration vulnerability exists in netease-youdao/qanything version 1.4.1
CVE-2024-7099 CRITICAL 9.8 DOWNGRADE netease-youdao/qanything version 1.4.1 contains a vulnerability where unsafe data obtained from user input is
CVE-2024-12866 HIGH 7.5 DOWNGRADE A local file inclusion vulnerability exists in netease-youdao/qanything version v2.0.0

References

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