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Medium

Authorization Bypass in Apache Answer Timeline API

IdentifiersCVE-2026-25699CWE-862

CVE-2026-25699 is an authorization bypass vulnerability in Apache Answer affecting versions through 2.0.0. Timeline-related API endpoints lacked proper authorization checks, allowing regular authenticated users to retrieve content they should not be permitted to access. According to the provided content, this included deleted, private, or unapproved content, along with associated revision history. Apache describes the issue as exposure of private personal information to an unauthorized actor. The flaw is rooted in missing or insufficient authorization enforcement on timeline-related API paths rather than unauthenticated access.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

A low-privileged but authenticated user can bypass intended access restrictions and view sensitive application data, including deleted, private, or unapproved content and historical revisions. This can result in unauthorized disclosure of private personal information, internal or moderation-only content, and prior versions of restricted material that may contain additional sensitive data. The primary impact is confidentiality loss.

Mitigation

If you can’t patch tonight, do this now.

If immediate upgrade is not possible, restrict access to Apache Answer to trusted users only, closely review and limit permissions for authenticated accounts, and place the application behind compensating access controls such as VPN or SSO-based access restrictions where feasible. Monitor for suspicious access to timeline-related endpoints and review logs for unauthorized retrieval of deleted, private, unapproved, or historical content. These are temporary measures; the definitive fix is upgrading to 2.0.1 or later.

Remediation

Patch, then assume compromise.

Upgrade Apache Answer to version 2.0.1 or later. The provided content states that version 2.0.1 fixes the missing authorization checks in the timeline-related APIs.
PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType
Apache Software FoundationAnswerapplication

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

ACTIVITY FEED

Recent activity

3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.

3 SOURCESView more in app
What this page doesn’t show

The version that knows your environment.

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Exposure mapping

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Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity2

Community discussion across Reddit, Mastodon, and other social sources.

EXTERNAL REFERENCES
MITRE CVE
cve.org · CVE-2026-25699
NVD
nvd.nist.gov/vuln/detail/CVE-2026-25699
MITRE CWE · CWE-862
cwe.mitre.org
Vendor Advisory
lists.apache.org/thread/c36k4hzwhncqo0qfn5fg57f1gkjhyfv8
Third Party Advisory
openwall.com/lists/oss-security/2026/06/09/6