CVE-2026-93894Disclosure

LOWCVSS 2.3 · LOW

Signal is active with 1 mentions in latest observed window

Immediate actions

Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

In Vinyl Cache before 9.0,2, workspace buffer overflow vulnerability was found in the .upper() and .lower() string type methods of VCL. This can be used as a remote denial of service (DoS) vector to make the child process segfault or assert, and then restart. Effectively exploiting this vulnerability requires prior knowledge about the VCL in use and the ability to craft a request that contains a string that is long enough to fill the remaining workspace at the call site while staying under the different request size limits (http_req_size, http_req_hdr_len, etc.).

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0.0/ 10 priority

Sources & remediation

Other references

https://vinyl-cache.org/security/VSV00020.html

Weakness type (CWE)

CWE-787

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

STABLE

Threat summary

2 mentions across 2 observed days
Momentum state: stable

What's happening

Technical details provided in 1 signal
Disclosure: 1 classified signal
Peaked 1d ago at 1 mentions (2026-09-19); latest day: 1
2 total mentions across 2 days

Deep dive

Activity timeline2 mentions / 2d

Signal classification1 categories

Disclosure

1100.0%

Referenced assets2 URLs

By indicator

Full discourse2 posts

Hugo | DevOps | Cybersecurity@HugoValters1d
CVE-2026-93894: buffer overflow in Vinyl Cache VCL .upper()/.lower() allows remote DoS via segfaulting child process. CVSS 5.9, no patch yet. Restrict/validate untrusted input and update when fixed. #CVE #infosec #cybersecurity https://www.valtersit.com/cve/CVE-2026-93894/ #VinylCache #CVEALERT #CVE #infosec #Linux #XSS #valtersit #snippet #SysAdmin #cybersecurity #devsecops #devops #developer #100daysofcode #git #github #gitlab #redteam #blueteam #ethicalhacker #cybersecurityawareness #cybersecuritynews #cybersecuritytips #python #hacker #kali #ubuntu #debian #docker
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CVE@CVEnew46d
Disclosure
CVE-2026-93894 In Vinyl Cache before 9.0,2, workspace buffer overflow vulnerability was found in the .upper() and .lower() string type methods of VCL. This can be used as a remote d… https://www.cve.org/CVERecord?id=CVE-2026-93894
Post summary
The text announces CVE-2026-93894, describing a workspace buffer overflow in VCL's .upper() and .lower() methods, but provides no evidence of active exploitation, PoC code, named exploits, or patches, appearing as a limited vulnerability disclosure.
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