CVE-2026-6893: dracut OS Command Injection
Vulnerability summary
CVE-2026-6893 is a high (CVSS 7.5) OS Command Injection vulnerability in dracut. EPSS estimates a 3.14% chance of exploitation in the next 30 days, higher than 87.7% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 21 · Related 10Timeline
- 10-06-2026PublishedVulnerability first disclosed.
- 08-10-2026Last modifiedVulnerability information updated.
Description
A flaw was found in dracut. A remote attacker on the adjacent network can exploit this vulnerability by providing specially crafted DHCP (Dynamic Host Configuration Protocol) options, such as a malicious hostname, to a system using dracut's legacy DHCP path. These options are improperly handled and written into temporary shell scripts without proper escaping, leading to command injection. This allows the attacker to achieve root code execution within the initramfs, potentially compromising the system's boot and network behavior.
CVSS metrics
5 scores · 5 sources · 1 version- OSV · Red hatEcosystem advisory · calculated7.5HighCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- NVDNIST7.5HighCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
3.14%
Chance of exploitation in the next 30 days
Percentile
88%
Versus all other CVEs
30-day change
+1.86 pp
From 1.27% on 20-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Suse21 products
- dracut&distro=SUSE Linux Enterprise High Availability Extension 15 SP6< 059+suse.565.g682306ec5-150600.3.29.1
- dracut&distro=SUSE Linux Enterprise High Availability Extension 15 SP7< 059+suse.570.g2b84048d7-150700.3.17.1
- dracut&distro=SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS< 055+suse.365.g79144c5-150400.3.49.1
- dracut&distro=SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS< 055+suse.365.g79144c5-150400.3.49.1
- dracut&distro=SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS< 055+suse.402.g2720eea-150500.3.41.1
Redhat10 products
- dracut< 0:109-6.hum1 | < 0:107-7.el10_2 | < 0:057-115.git20260527.el9_8
- dracut-caps< 0:109-6.hum1 | < 0:107-7.el10_2 | < 0:057-115.git20260527.el9_8
- dracut-config-generic< 0:109-6.hum1 | < 0:107-7.el10_2 | < 0:057-115.git20260527.el9_8
- dracut-config-rescue< 0:109-6.hum1 | < 0:107-7.el10_2 | < 0:057-115.git20260527.el9_8
- dracut-debuginfo< 0:107-7.el10_2 | < 0:057-115.git20260527.el9_8
Opensuse2 products
- dracut&distro=openSUSE Leap 16.0< 059+suse.722.gdd9d67ff5-160000.1.1
- dracut&distro=openSUSE Tumbleweed< 110+suse.35.g9834432-1.1
Debian1 product
- dracutAll versions (No fix recorded) | < 112-1
Ubuntu1 product
- dracut< 044+3-3ubuntu0.1~esm1 | < 047-2ubuntu0.1~esm1 | < 048+80-2ubuntu0.1~esm1 | < 051-1ubuntu0.1~esm1 | < 060+5-1ubuntu3.4 | All versions (No fix recorded)
5 vendors · 35 products
References
46 linksShow all 46 references
- images.redhat.comARTICLE