Security readout for executives and security teams
Plain-English summary
CVE-2026-21695 affects Titra, an open source time tracking application. Authenticated users can manipulate time-entry data by supplying unexpected custom field names. This can bypass business rules and alter protected fields such as user, hours, or state. The vendor advisory says the issue is fixed in version 0.99.50.
Executive priority
Prioritize remediation for Titra instances used in billing, payroll, client reporting, or approval workflows. The issue is not rated critical, but it can undermine trust in time-tracking records if exploited by an authenticated user.
Technical view
Titra versions 0.99.49 and below contain a CWE-915 mass assignment flaw in an API handling time entries. User-controlled customfields are merged into the database document using the JavaScript spread operator without an allowlist for permitted keys. The CVSS 3.1 score is 4.3, reflecting network access, low complexity, required privileges, and low integrity impact.
Likely exposure
Exposure is limited to deployments running Titra 0.99.49 or earlier where users can authenticate to the affected API. The documented impact is unauthorized modification of time-entry fields, not data disclosure or service outage.
Exploitation context
The source bundle does not indicate public exploitation or CISA KEV listing. Abuse requires an authenticated user account and targets business logic around time entries. This is most relevant where time data supports billing, payroll, approvals, or compliance reporting.
Researcher notes
Evidence is limited to the CVE record, GitHub advisory, and fix commit. The advisory identifies mass assignment through customfields and examples of protected fields that may be overwritten. Do not assume unauthenticated exploitation, broader product impact, or active exploitation from the provided sources.
Mitigation direction
- Upgrade Titra to version 0.99.50 or later.
- Review vendor advisory and linked commit for implementation details.
- Restrict Titra access to trusted users until upgraded.
- Review recent time-entry changes for unexpected user, hours, or state values.
Validation and detection
- Inventory Titra instances and confirm running versions.
- Verify no production instance is at 0.99.49 or below.
- Confirm the deployed code includes the vendor fix commit or later release.
- Check application logs or audit records for suspicious time-entry modifications.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-915: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupDatabase behavior lookup
The CVE wording references database injection or access, so collection and exfiltration review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-21695 mapping review
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Open ATT&CK lookup- Severity
- Medium
- CVSS
- 4.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N2.81.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
4.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/kromitgmbh/titra/security/advisories/GHSA-gc65-vr47-jppqCVE reference · x_refsource_CONFIRM
- https://github.com/kromitgmbh/titra/commit/29e6b88eca005107729e45a6f1731cf0fa5f8938CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improperly Controlled Modification of Dynamically-Determined Object Attributes
Improperly Controlled Modification of Dynamically-Determined Object Attributes represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.