CVE-2026-89497Patch

LOWCVSS 7.8 · HIGH

Signal is active with 2 mentions in latest observed window

Immediate actions

Patch affected systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

In the Linux kernel, the following vulnerability has been resolved: orangefs: skip leading spaces before parsing client debug masks orangefs_prepare_cdm_array() sizes each client debug keyword buffer with strcspn(cds_head, " "), but then parses the keyword with %s. The %s conversion skips leading whitespace, while strcspn() does not. If a client debug entry starts with a space, the allocation can be sized for an empty keyword while sscanf() copies the following non-empty token. This can write past the end of the allocated keyword buffer. Skip leading spaces before computing the keyword length so the allocation matches the string parsed by sscanf().

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0.5/ 10 priority

Sources & remediation

Other references

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Threat summary

Patch or workaround signal is available
2 mentions across 1 observed day

What's happening

Patch or workaround mentioned in 2 signals
Technical details provided in 2 signals
2 total mentions across 1 day

Deep dive

Activity timeline2 mentions / 1d

Signal classification1 categories

Patch

2100.0%

Referenced assets1 URL

By indicator

https://www.valtersit.com/cve/CVE-2026-89497

Full discourse2 posts

Hugo | DevOps | Cybersecurity 🇱🇻@HugoValters45d
Patch
CVE-2026-89497: buffer overflow in Linux kernel orangefs debug parsing can lead to memory corruption. CVSS N/A but unpatched. Patch now if you run orangefs. https://www.valtersit.com/cve/CVE-2026-89497 #CVE #Linux #infosec #cybersecurity #infosec #Microsoft #CVE #infosec #XSS #valtersit #snippet #infosec #SysAdmin #cybersecurity #Linux #devsecops #devops #developer #sysadmin #100daysofcode #git #github #gitlab #redteam #blueteam #ethicalhacker #cybersecurityawareness #cybersecurity #cybersecuritynews #cybersecuritytips #python #hacker #linux #kali #ubuntu #debian #docker
Post summary
The post describes a Linux kernel orangefs buffer overflow vulnerability and urges patching, but does not provide PoC, exploit, active-exploitation, or specific patch details.
0000034
1.1K followersView on X
DFIR Lab@DFIR_Lab46d
Patch
#ALERT CVE-2026-89497: Linux kernel vulnerability (CVSS 7.8) in orangefs allows buffer overflow via client debug masks. Local privilege escalation risk. Patch immediately. #CVE #Vulnerability #PatchNow #ThreatIntel #DFIR https://t.co/86lxjsKsGs
Post summary
Alert tweet for CVE-2026-89497 describing an orangefs buffer overflow (CVSS 7.8) enabling local privilege escalation, with an explicit call to patch immediately.
0000038
139 followersView on X

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