CVE-2024-40761
Apache Answer: Avatar URL leaked user email addresses
Inadequate Encryption Strength vulnerability in Apache Answer.
This issue affects Apache Answer: through 1.3.5.
Using the MD5 value of a user's email to access Gravatar is insecure and can lead to the leakage of user email. The official recommendation is to use SHA256 instead. Users are recommended to upgrade to version 1.4.0, which fixes the issue.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Apache Answer: Avatar URL leaked user email addresses
Inadequate Encryption Strength vulnerability in Apache Answer.
This issue affects Apache Answer: through 1.3.5.
Using the MD5 value of a user's email to access Gravatar is insecure and can lead to the leakage of user email. The official recommendation is to use SHA256 instead. Users are recommended to upgrade to version 1.4.0, which fixes the issue.
- Record
CVE-2024-40761- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-326
- Updated
- 2026-11-02
EUVDEUVD-2024-2708
Inadequate Encryption Strength vulnerability in Apache Answer.
This issue affects Apache Answer: through 1.3.5.
Using the MD5 value of a user's email to access Gravatar is insecure and can lead to the leakage of user email. The official recommendation is to use SHA256 instead. Users are recommended to upgrade to version 1.4.0, which fixes the issue.
- Record
EUVD-2024-2708- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-48cr-j2cx-mcr8
Apache Answer: Avatar URL leaked user email addresses
Inadequate Encryption Strength vulnerability in Apache Answer.
This issue affects Apache Answer: through 1.3.5.
Using the MD5 value of a user's email to access Gravatar is insecure and can lead to the leakage of user email. The official recommendation is to use SHA256 instead. Users are recommended to upgrade to version 1.4.0, which fixes the issue.
- Record
GHSA-48cr-j2cx-mcr8- CVSS 4.0
- 6.9 Medium
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/U:Green - CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-326
- Updated
- 2026-11-02
NVD
Inadequate Encryption Strength vulnerability in Apache Answer.
This issue affects Apache Answer: through 1.3.5.
Using the MD5 value of a user's email to access Gravatar is insecure and can lead to the leakage of user email. The official recommendation is to use SHA256 instead. Users are recommended to upgrade to version 1.4.0, which fixes the issue.
- Record
CVE-2024-40761- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-326
- Updated
- 2026-11-02
OSV
Apache Answer: Avatar URL leaked user email addresses
Inadequate Encryption Strength vulnerability in Apache Answer.
This issue affects Apache Answer: through 1.3.5.
Using the MD5 value of a user's email to access Gravatar is insecure and can lead to the leakage of user email. The official recommendation is to use SHA256 instead. Users are recommended to upgrade to version 1.4.0, which fixes the issue.
- Record
CVE-2024-40761- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-326
- Updated
- 2026-11-02
OSVGHSA-48cr-j2cx-mcr8
Apache Answer: Avatar URL leaked user email addresses
Inadequate Encryption Strength vulnerability in Apache Answer.
This issue affects Apache Answer: through 1.3.5.
Using the MD5 value of a user's email to access Gravatar is insecure and can lead to the leakage of user email. The official recommendation is to use SHA256 instead. Users are recommended to upgrade to version 1.4.0, which fixes the issue.
- Record
GHSA-48cr-j2cx-mcr8- CVSS 4.0
- 6.9 Medium
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/U:Green - CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-326
- Updated
- 2026-11-02
OSVGO-2024-3158 No score
Apache Answer: Avatar URL leaked user email addresses in github.com/apache/incubator-answer
Apache Answer: Avatar URL leaked user email addresses in github.com/apache/incubator-answer
- Record
GO-2024-3158- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
github.com/apache/incubator-answerGo |
before 1.4.0 | 1.4.0 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2024-40761 is a medium vulnerability (CVSS 5.3) in Apache Answer, published September 25, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.75%, the 55th percentile. Fixed in github.com/apache/incubator-answer 1.4.0.
References
lists.apache.org/thread/mmrhsfy16qwrw0pkv0p9kj40vy3sg08x
openwall.com/lists/oss-security/2024/09/25/2
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nvd.nist.gov/vuln/detail/CVE-2024-40761
github.com/apache/incubator-answer/commit/c3a17046c6c3be1cec16ba49d07d9f7742b7260f