CVE-2026-34031
CVE-2026-34031 is a medium-severity vulnerability in Apache Answer with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-434.
Key facts
- Severity: Medium (CVSS 3.x base score 6.5)
- EPSS exploit prediction: 0% (32nd percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-35370
- Weakness: CWE-434
- Affected product: Apache Answer
- Published:
- Last modified:
Description
Unrestricted Upload of File with Dangerous Type vulnerability in Apache Answer. This issue affects Apache Answer: through 2.0.0. The server did not sufficiently validate user-supplied image URLs, allowing arbitrary external content to be embedded as profile images, which could expose users to unintended external requests and tracking by third-party servers. Users are recommended to upgrade to version 2.0.1, which fixes the issue.
Frequently asked questions
- What is CVE-2026-34031?
- Unrestricted Upload of File with Dangerous Type vulnerability in Apache Answer. This issue affects Apache Answer: through 2.0.0. The server did not sufficiently validate user-supplied image URLs, allowing arbitrary external content to be embedded as profile images, which could expose users to unintended external requests and tracking by third-party servers. Users are recommended to upgrade to version 2.0.1, which fixes the issue.
- How severe is CVE-2026-34031?
- CVE-2026-34031 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2026-34031 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-34031?
- CVE-2026-34031 affects Apache Answer. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-34031?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-34031 have an EU (EUVD) identifier?
- Yes. CVE-2026-34031 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-35370.
- When was CVE-2026-34031 published?
- CVE-2026-34031 was published on 2026-06-09 and last updated on 2026-06-17.
References
- https://lists.apache.org/thread/rwtxy39t54to9kv3dqtbjsbdpyk4jkd2
- http://www.openwall.com/lists/oss-security/2026/06/09/4
Affected products (1)
- cpe:2.3:a:apache:answer:*:*:*:*:*:*:*:*
More vulnerabilities in Apache Answer
- CVE-2024-22393 — Critical (CVSS 9.1): Unrestricted Upload of File with Dangerous Type vulnerability in Apache Answer.This issue affects Apache Answer:…
- CVE-2026-24735 — High (CVSS 7.5): Exposure of Private Personal Information to an Unauthorized Actor vulnerability in Apache Answer. This issue affects…
- CVE-2026-25700 — High (CVSS 7.2): Improper Restriction of Security Token Assignment vulnerability in Apache Answer. This issue affects Apache Answer:…
- CVE-2026-34905 — Medium (CVSS 6.5): Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Apache Answer. This issue affects Apache…
- CVE-2026-33582 — Medium (CVSS 6.5): Unrestricted Upload of File with Dangerous Type vulnerability in Apache Answer. This issue affects Apache Answer:…
- CVE-2025-29868 — Medium (CVSS 6.5): Private Data Structure Returned From A Public Method vulnerability in Apache Answer. This issue affects Apache Answer:…
All CVEs affecting Apache Answer →
Other CWE-434 (Unrestricted Upload of File with Dangerous Type) vulnerabilities
- CVE-2026-48283 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Unrestricted Upload of File with Dangerous Type…
- CVE-2026-48276 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Unrestricted Upload of File with Dangerous Type…
- CVE-2026-57700 — Critical (CVSS 10.0): Unrestricted Upload of File with Dangerous Type vulnerability in Daan.Dev OMGF Pro allows Using Malicious Files. This…
- CVE-2025-69129 — Critical (CVSS 10.0): Unauthenticated Arbitrary File Upload in WordPress & WooCommerce Scraper Plugin, Import Data from Any Site <= 1.0.7…
- CVE-2026-40772 — Critical (CVSS 10.0): Unauthenticated Arbitrary File Upload in GeekyBot <= 1.2.2 versions.
- CVE-2026-40412 — Critical (CVSS 10.0): Unrestricted upload of file with dangerous type in Azure Orbital Spatio allows an unauthorized attacker to execute code…
Browse all CWE-434 (Unrestricted Upload of File with Dangerous Type) vulnerabilities →