CVE-2026-86734

Snipe-IT before 8.7.1 Denial of Service via Unbounded Note Field

At a glance

Severity: HIGH 7.1
EPSS: EPSS 0.55 % · percentile 46 (2026-10-27)
State: PUBLISHED
Published: 2026-09-08
Updated: 2026-09-10
Assigner: VulnCheck
NVD status: Analyzed

Description

Snipe-IT before 8.7.1 fails to validate the length of the note field in the POST /account/accept/{acceptance} endpoint, allowing authenticated users to submit unbounded input that reaches synchronous CommonMark rendering. Attackers can submit large note values to exhaust PHP worker CPU and cause denial of service through resource exhaustion in the markdown parsing pipeline.

Scores

Version	Score	Vector	Scored by
CVSS 4.0	HIGH 7.1	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N	VulnCheck
CVSS 3.1	MEDIUM 6.5	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	VulnCheck
CVSS 4.0	HIGH 7.1	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X	NVD · disclosure@vulncheck.com (Secondary)
CVSS 3.1	MEDIUM 6.5	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	NVD · disclosure@vulncheck.com (Secondary)

Weaknesses (CWE)

CWE-400

European references

ENISA EUVD · EUVD-2026-72870
GCVE · GCVE-0-2026-86734

Affected configurations (NVD CPE)

cpe:2.3:a:snipeitapp:snipe-it:*:*:*:*:*:*:*:* < 8.7.1

Affected products

Product	Versions
grokability · snipe-it	affected 0 < 8.7.1 ; unaffected 8.7.1

References

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD