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CVE-2026-86771

7.6 HIGHPublic exploitEPSS 0.19%
  1. Published9 Sept 2026

Description

Snipe-IT versions before 8.7.0 fail to HTML-escape the employee_num field in the acceptance PDF generator, allowing attackers with users.edit permission to inject img tags into TCPDF's writeHTML() function. Attackers can craft a malicious employee_num value containing an img tag with an arbitrary HTTP(S) URL to trigger server-side requests to internal services, cloud metadata endpoints, or external targets when a victim signs an asset acceptance.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionRequired
ScopeChanged
ConfidentialityHigh
IntegrityNone
AvailabilityLow
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:L

Affected products

Snipeitapp Snipe-It< 8.7.0

Remediation

Fixed in
Snipeitapp Snipe-It≥ 8.7.0

References

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Frequently asked

Is CVE-2026-86771 being actively exploited?

CVE-2026-86771 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.19%.

How severe is CVE-2026-86771?

CVE-2026-86771 has a CVSS 3.1 base score of 7.6, rated high. EPSS estimates a 0.19% probability of exploitation.

Which products are affected by CVE-2026-86771?

Affected products include Snipeitapp Snipe-It.

How do I fix CVE-2026-86771?

Upgrade affected software to a fixed version, for example Snipeitapp Snipe-It 8.7.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-86771 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.