CVE-2026-18503Disclosure

LOWCVSS 2.4 · LOW

Signal is active with 2 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

Attacker-controlled CSV samples can trigger super-linear regular-expression work during dialect sniffing and consume significant CPU when applications pass unbounded input to csv.Sniffer.sniff().

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0.0/ 10 priority

Sources & remediation

Other references

Weakness type (CWE)

CWE-1176

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

2 mentions across 1 observed day

What's happening

Technical details provided in 2 signals
Disclosure: 2 classified signals
2 total mentions across 1 day

Deep dive

Activity timeline2 mentions / 1d

Signal classification1 categories

Disclosure

2100.0%

Referenced assets2 URLs

By indicator

Full discourse2 posts

Infoflowcloud@infoflowcloud46d
Disclosure
🚨*CVE* CVE-2026-18503 Attacker-controlled CSV samples can trigger super-linear regular-expression work during dialect sniffing and consume significant CPU when applications pass unbounde… https://www.cve.org/CVERecord?id=CVE-2026-18503 ----- Traducción: CVE-2026-18503: La… http://infoflow.cloud`
Post summary
The post announces CVE-2026-18503, noting it as a regex‑based denial‑of‑service issue that can trigger excessive CPU usage during CSV dialect sniffing.
0000030
98 followersView on X
CVE@CVEnew46d
Disclosure
CVE-2026-18503 Attacker-controlled CSV samples can trigger super-linear regular-expression work during dialect sniffing and consume significant CPU when applications pass unbounde… https://www.cve.org/CVERecord?id=CVE-2026-18503
Post summary
The post outlines CVE‑2026‑18503, describing how malicious CSV input can cause excessive CPU usage via super‑linear regex evaluation during dialect sniffing.
00000869
57.9K followersView on X

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