CVE-2026-2642Public exploit

Local process crash via unchecked compressed stream

Published Feb 18, 2026 · Updated Feb 18, 2026

NULL pointer dereference in The Silver Searcher 2.0 through 2.2.0 allows local users to crash ag with a crafted compressed file. In search_stream in src/search.c, ag passes a null FILE stream to getline while processing the crafted input. The user must run ag with compressed-file searching enabled; the resulting segmentation fault interrupts only that process.

CVSS severity3.3
Low
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL pointer dereference in The Silver Searcher 2.0 through 2.2.0 allows local users to crash ag with a crafted compressed file. In search_stream in src/search.c, ag passes a null FILE stream to getline while processing the crafted input. The user must run ag with compressed-file searching enabled; the resulting segmentation fault interrupts only that process.

The record

CVE
CVE-2026-2642
Published
Feb 18, 2026
Updated
Feb 18, 2026
Vendor
Geoff Greer
Product
The Silver Searcher
Classifications
CWE-404, CWE-476, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 18, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 18, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2.0
  2. Affected versionversion=2.1
  3. Affected versionversion=2.2.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Geoff Greer · The Silver Searcherversion=2.0; version=2.1; version=2.2.0

Published CVSS scores

3.3VulDBCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
1.9VulDBCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
1.7VulDBAV:L/AC:L/Au:S/C:N/I:N/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-404Improper Resource Shutdown or Release
CWE-476NULL Pointer Dereference
T1499.004Application or System Exploitation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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