Medium severity · published Sep 25, 2024
CVE-2024-40761
Apache Answer: Avatar URL leaked user email addresses
5.3
CVSS
0.7%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 55% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AA
Apache Answer · Apache Software Foundation
through 1.3.5 · source: vendor
AN
Answer · Apache
through 1.3.5 · source: NVD, CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-40761
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-40761
Mailing List
https://lists.apache.org/thread/mmrhsfy16qwrw0pkv0p9kj40vy3sg08x
Mailing List
http://www.openwall.com/lists/oss-security/2024/09/25/2
Mailing List
http://www.openwall.com/lists/oss-security/2024/09/25/5
Mailing List
http://www.openwall.com/lists/oss-security/2024/09/25/6
Mailing List
http://www.openwall.com/lists/oss-security/2024/09/25/7
Mailing List
http://www.openwall.com/lists/oss-security/2024/09/25/8
More from Apache Answer
9.8
CVE-2026-90910
Apache Answer: Reaction API authorization bypass for restricted content
9.1
CVE-2026-60053
Apache Answer: Residual Administrative API Key Access After Role or Account Revocation
8.1
CVE-2026-64943
Apache Answer: API keys logged in plaintext during authentication
7.5
CVE-2026-60023
Apache Answer: Unauthorized disclosure of deleted or pending answer content
7.5
CVE-2026-48911
Apache Answer: Unauthenticated OAuth Email-Binding Account Takeover via Existing User Confirmation Flow