# CVE-2026-126255: CVE-2026-126255

Status: published. Published: 2026-11-11. Updated: 2026-11-11.

A path traversal: '../filedir' vulnerability in Fortinet FortiOS 8.0.0 through 8.0.1, FortiOS 7.6.0 through 7.6.7, FortiOS 7.4.0 through 7.4.12, FortiOS 7.2.0 through 7.2.13, FortiPAM 1.6 all versions, FortiPAM 1.5 all versions, FortiPAM 1.4 all versions, FortiPAM 1.3 all versions, FortiPAM 1.2 all versions, FortiPAM 1.1 all versions, FortiPAM 1.0 all versions may allow an unauthenticated attacker to bypass authentication via specially crafted credentials.

## Remediation

- fix: Upgrade to upcoming  FortiPAM version 7.0.1 or above
Upgrade to FortiPAM version 1.9.3 or above
Upgrade to upcoming  FortiPAM version 1.8.5 or above
Upgrade to upcoming  FortiPAM version 1.7.3 or above
Upgrade to FortiOS version 8.0.2 or above
Upgrade to FortiOS version 7.6.8 or above
Upgrade to FortiOS version 7.4.13 or above
Upgrade to FortiOS version 7.2.14 or above (source: CNA: fortinet)

## Affected products and versions

- Fortinet / FortiOS: ≥ 8.0.0; ≤ 8.0.1 (affected, semver); ≥ 7.6.0; ≤ 7.6.7 (affected, semver); ≥ 7.4.0; ≤ 7.4.12 (affected, semver); ≥ 7.2.0; ≤ 7.2.13 (affected, semver). Source: CNA: fortinet
- Fortinet / FortiPAM: ≥ 1.6.0; ≤ 1.6.2 (affected, semver); ≥ 1.5.0; ≤ 1.5.1 (affected, semver); ≥ 1.4.0; ≤ 1.4.3 (affected, semver); ≥ 1.3.0; ≤ 1.3.1 (affected, semver); 1.2.0 (affected); ≥ 1.1.0; ≤ 1.1.2 (affected, semver); ≥ 1.0.0; ≤ 1.0.3 (affected, semver). Source: CNA: fortinet

## Severity and prioritization

- CVSS 3.1: 7.4 (high); CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N/E:P/RL:O/RC:C; source: CNA: fortinet

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-24

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://fortiguard.fortinet.com/psirt/FG-IR-26-269 (CNA: fortinet)

## Provenance

- CNA: fortinet: https://www.cve.org/CVERecord?id=CVE-2026-126255; retrieved 2026-11-11; source updated 2026-11-11

Revision: 32fb760f65db1c372cebc512821c3dbd4823e4d79a2e64c3d3ae7e97d73f2e84

Canonical: https://y2.dev/cve/CVE-2026-126255

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