VulnSocial

CVE-2026-42267Disclosure(kimai / kimai)

LOWCVSS 5.7 · MEDIUM

Signal is active with 2 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

Kimai is an open-source time tracking application. From version 2.27.0 to before version 2.54.0, any ROLE_USER can create a tag with a formula string as its name (e.g. =SUM(54+51)) via POST /api/tags and assign it to a timesheet. When an admin exports timesheets to XLSX, ArrayFormatter.formatValue() joins tag names with implode() and returns the result unchanged. OpenSpout promotes any =-prefixed string to a FormulaCell, writing <f>SUM(54+51)</f> into the XLSX archive. Excel evaluates the formula when the file is opened. This issue has been patched in version 2.54.0.

kimai CVEsBack to dashboard
0.0/ 10 priority

Sources & remediation

Exploit / PoC references
Other references
Weakness type (CWE)
CWE-1236

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

NONE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • kimai

Threat summary

  • 3 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Technical details provided in 2 signals
  • Disclosure: 3 classified signals
  • Peaked at 2 mentions on most recent observed day (2026-05-09)
  • 3 total mentions across 2 days

Affected systems

Vendors
kimai
Products
kimai

Deep dive

Activity timeline3 mentions / 2d
01122Mentions · 2026-05-08: 1Mentions · 2026-05-09: 2Technical Details · 2026-05-09: 205-0805-09
Signal classification1 categories
Disclosure
3100.0%
Referenced assets3 URLs
Classification over time
DateTotalLabels
2026-05-081
Disclosure1
2026-05-092
Disclosure2
Full discourse3 posts
  • Infoflowcloud@infoflowcloud
    Disclosure

    🚨*CVE* CVE-2026-42267 Kimai is an open-source time tracking application. From version 2.27.0 to before version 2.54.0, any ROLE_USER can create a tag with a formula string as its name (e.g… https://www.cve.org/CVERecord?id=CVE-2026-42267 ----- Traducción: CVE-2026-42267 Kim… http://infoflow.cloud`

    Post summary

    CVE‑2026‑42267 is disclosed as a flaw in Kimai where ROLE_USERs can create tags with formula strings, potentially enabling exploitation. No PoC, patch, or active exploitation evidence is provided.

    0000028
    76 followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-42267 Kimai is an open-source time tracking application. From version 2.27.0 to before version 2.54.0, any ROLE_USER can create a tag with a formula string as its name (e.g… https://www.cve.org/CVERecord?id=CVE-2026-42267

    Post summary

    CVE-2026-42267 is a flaw in Kimai that lets any user create tags with formula strings between versions 2.27.0 and 2.53.99, exposing a potential issue in tag handling.

    00000225
    57.5K followersView on X
  • CVEarity@CVEarity
    Disclosure

    ⚡ New CVE Alert: CVE-2026-42267 📊 Severity: 5.4 🚨 Risk Level: Medium 🧩 Affects: Multiple / Unspecified Products Reference: https://nvd.nist.gov/vuln/detail/CVE-2026-42267 #CVE-2026-42267 #CVE #Medium #CyberSecurity #InfoSec https://t.co/nJc9qhzbaa

    Post summary

    The tweet simply announces a new CVE (CVE-2026-42267) with a medium severity score and provides a link to the NVD, offering no further technical, exploit, or remediation details.

    0000040
    157 followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appkimaikimai---

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