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TI-2026-78973 Aliases CVE-2026-85518GHSA-vp9g-975v-q4cm

Path traversal in OpenSCAP lets crafted datastreams write files

Priority MEDIUM 60CWE-22Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · High · Low
Fix status
Partial Red Hat: 1 fixed, 5 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.

Summary

OpenSCAP in Red Hat Hardened Images and Red Hat Enterprise Linux 6, 7, 8, 9 and 10 does not validate relative file paths when decomposing a Source DataStream (SDS) file. This path traversal flaw (CWE-22) lets a crafted datastream create or modify files outside the target directory. An attacker must trick a user or automated system into decomposing the datastream, and the writes run with the permissions of the executing process.

Written with Claude Haiku 5.5 from the sources below · 2026-11-04

Description from the CNA

A flaw was found in OpenSCAP. When decomposing a Source DataStream (SDS) file, the application does not properly validate relative file path attributes, leading to a path traversal vulnerability. An attacker can exploit this flaw by tricking a user or automated system into decomposing a crafted datastream containing directory traversal sequences. Successful exploitation allows unauthorized file creation or modification outside the intended target directory with the permissions of the executing process.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00447 39th percentileScored 2026-11-07
Fix Partial Red Hat: 1 advisoryRed Hat: 1 fixed, 5 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Red HatRed Hat Hardened Images—1.4.5-2.1.hum1Patch availableCNA
Red HatRed Hat Enterprise Linux 10——No fix listedCNA
Red HatRed Hat Enterprise Linux 6——No fix listedCNA
Red HatRed Hat Enterprise Linux 7——No fix listedCNA
Red HatRed Hat Enterprise Linux 8——No fix listedCNA
Red HatRed Hat Enterprise Linux 9——No fix listedCNA
  • Red Hat Hardened Images VendorRed Hat Affected — Fixed in 1.4.5-2.1.hum1 Patch available CNA
  • Red Hat Enterprise Linux 10 VendorRed Hat Affected — Fixed in — No fix listed CNA
  • Red Hat Enterprise Linux 6 VendorRed Hat Affected — Fixed in — No fix listed CNA
  • Red Hat Enterprise Linux 7 VendorRed Hat Affected — Fixed in — No fix listed CNA
  • Red Hat Enterprise Linux 8 VendorRed Hat Affected — Fixed in — No fix listed CNA
  • Red Hat Enterprise Linux 9 VendorRed Hat Affected — Fixed in — No fix listed CNA

CPE names CNA · 6

CPEVersionsRoleVendor
cpe:/a:redhat:hummingbird:11—Red Hat
cpe:/a:redhat:enterprise_linux:1010—Red Hat
cpe:/o:redhat:rhel_els:66—Red Hat
cpe:/o:redhat:rhel_els:77—Red Hat
cpe:/a:redhat:enterprise_linux:88—Red Hat
cpe:/a:redhat:enterprise_linux:99—Red Hat
  • cpe:/a:redhat:hummingbird:1 Versions 1 — ·Red Hat
  • cpe:/a:redhat:enterprise_linux:10 Versions 10 — ·Red Hat
  • cpe:/o:redhat:rhel_els:6 Versions 6 — ·Red Hat
  • cpe:/o:redhat:rhel_els:7 Versions 7 — ·Red Hat
  • cpe:/a:redhat:enterprise_linux:8 Versions 8 — ·Red Hat
  • cpe:/a:redhat:enterprise_linux:9 Versions 9 — ·Red Hat

Remediation

Red Hat Hardened Images is fixed in 1.4.5-2.1.hum1 by RHSA-2026:88330. The sources list no fixed version for Red Hat Enterprise Linux 6, 7, 8, 9 or 10.

Written with Claude Haiku 5.5 from the sources below · 2026-11-04

Red Hat 1 advisory

  • RHSA-2026:88330 Released 2026-10-22 · Red Hat rating Moderate
    Red Hat Hardened Images RPMs Security Update
    • Red Hat Hardened Images openscap-1:1.4.5-2.1.hum1@aarch64, openscap-1:1.4.5-2.1.hum1@s390x, openscap-1:1.4.5-2.1.hum1@src +25

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 10AffectedNo fix yet
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 7AffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux 8AffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux 9AffectedNo fix yet
Red Hat Hardened ImagesFixed RHSA-2026:88330

Timeline

  1. 2026-10-21 Threatist record created from CVE-2026-85518
  2. 2026-10-21 Alias added: GHSA-vp9g-975v-q4cm
  3. 2026-10-23 Fix available: [email protected] · CNA
  4. 2026-10-23 1 new reference · CNA
  5. 2026-10-23 Fix available: RHSA-2026:88330 · Red Hat
  6. 2026-10-23 Fix available: Red Hat Hardened Images · Red Hat
  7. 2026-10-23 Priority changed: MEDIUM → LOW
  8. 2026-10-28 CISA SSVC decision points changed
  9. 2026-10-28 Priority changed: LOW → MEDIUM
  10. 2026-11-04 Affected versions changed · Red Hat

References

Advisory 1

Other 2

  • TI-2019-15875 Protection mechanism failure in Jenkins Pipeline: Groovy Plugin KEVCVSS 3.1CRITICAL 9.9
  • TI-2019-15874 Protection mechanism failure in Jenkins Script Security Plugin KEVCVSS 3.1CRITICAL 9.9
  • TI-2019-08259 Underflow in PHP-FPM can lead to RCE KEVCVSS 3.1CRITICAL 9.8
  • TI-2019-05363 Code injection in Elastic Kibana KEVCVSS 3.1CRITICAL 10.0
  • TI-2019-03949 Out-of-bounds write in ESXi and Horizon DaaS KEVCVSS 3.1CRITICAL 9.8
  • TI-2018-16080 A code execution vulnerability exists in the Stapler web framework used by Jenkins 2.153… KEVCVSS 3.1CRITICAL 9.8
See all 7413 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences