How severe is CVE-2026-78620?

CVE-2026-78620 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2026-78620 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-78620?

CVE-2026-78620 affects Okta Access Gateway. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-78620?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2026-78620 published?

CVE-2026-78620 was published on 2026-09-08 and last updated on 2026-09-22.

CVE-2026-78620

CVE-2026-78620 is a medium-severity vulnerability in Okta Access Gateway with a CVSS 3.x base score of 5.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-73.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
EPSS exploit prediction: 0% (25th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-73
Affected product: Okta Access Gateway
Published: 2026-09-08
Last modified: 2026-09-22

Description

The Okta Access Gateway Kerberos configuration handler does not validate file paths specified in event payloads before writing file contents. The path from the event payload is used directly as the write destination, resulting in files being written to unintended locations on the appliance filesystem.

Frequently asked questions

What is CVE-2026-78620?: The Okta Access Gateway Kerberos configuration handler does not validate file paths specified in event payloads before writing file contents. The path from the event payload is used directly as the write destination, resulting in files being written to unintended locations on the appliance filesystem.
How severe is CVE-2026-78620?: CVE-2026-78620 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2026-78620 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-78620?: CVE-2026-78620 affects Okta Access Gateway. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-78620?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2026-78620 published?: CVE-2026-78620 was published on 2026-09-08 and last updated on 2026-09-22.

References

https://trust.okta.com/security-advisories/improper-path-validation-in-okta-access-gateway-kerberos-configuration-handling-cve-2026-78620

Affected products (1)

cpe:2.3:a:okta:access_gateway:*:*:*:*:*:*:*:*

More vulnerabilities in Okta Access Gateway

CVE-2026-78626 — High (CVSS 8.1): The Okta Access Gateway improperly handles input sanitization and regular expression evaluation within its Protected…
CVE-2026-78623 — High (CVSS 7.7): The Okta Access Gateway does not sanitize SAML assertion values before interpolating them into database queries in the…
CVE-2026-78579 — Medium (CVSS 6.8): The Okta Access Gateway does not sanitize SAML assertion attribute values before interpolating them into LDAP search…
CVE-2026-78630 — Medium (CVSS 6.7): The Okta Access Gateway does not neutralize shell metacharacters in SNMP configuration values before a privileged…
CVE-2026-78625 — Medium (CVSS 6.7): The Okta Access Gateway does not sanitize dashboard label values before writing them into generated PHP configuration…
CVE-2021-28113 — Medium (CVSS 6.7): A command injection vulnerability in the cookieDomain and relayDomain parameters of Okta Access Gateway before 2020.9.3…

All CVEs affecting Okta Access Gateway →

Other CWE-73 vulnerabilities

CVE-2026-101148 — Critical (CVSS 10.0): The BackupSheep WordPress Backup Plugin WordPress plugin through 1.8 does not properly validate its integration key,…
CVE-2026-20358 — Critical (CVSS 10.0): As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Crosswork engineering team…
CVE-2026-50148 — Critical (CVSS 10.0): Metabase is an open-source business intelligence and embedded analytics tool. From 1.54.0 until 1.54.24, 1.55.24,…
CVE-2025-71338 — Critical (CVSS 10.0): Flowise through 2.2.7 fails to sanitize path segments in the document-store loader endpoint, allowing unauthenticated…
CVE-2026-39907 — Critical (CVSS 10.0): Unisys WebPerfect Image Suite versions 3.0.3960.22810 and 3.0.3960.22604 expose an unauthenticated WCF SOAP endpoint on…
CVE-2026-27211 — Critical (CVSS 10.0): Cloud Hypervisor is a Virtual Machine Monitor for Cloud workloads. Versions 34.0 through 50.0 arevulnerable to…

Browse all CWE-73 vulnerabilities →