Detections
Analytics
Amazon Linux 2 : runfinch-finch (ALASDOCKER-2026-151)
high Nessus Plugin ID 371810
Synopsis
The remote Amazon Linux 2 host is missing a security update.Description
The version of runfinch-finch installed on the remote host is prior to 1.19.0-1. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2DOCKER-2026-151 advisory.When Trailer headers are sent by a client, the HTTP server internally uses the header values to populate the Request.Trailer map passed to the server handler. Because Request.Trailer is a map, each entry incurs memory overhead. For HTTP/2 servers, a malicious client can exploit this by sending a Trailer header that declares a large number of fields causing the server to allocate a disproportionate amount of memory while bypassing Server.MaxHeaderValueCount and Server.MaxHeaderBytes limits.This exploit is not applicable for HTTP/1 servers, which do not support multiplexing a large number of requests over one TCP connection, and whose Server.MaxHeaderBytes are calculated differently.Server.MaxHeaderValueCount and Server.MaxHeaderBytes limits are now applied towards the trailer fields declared in Trailer headers.
NOTE: https://www.openwall.com/lists/oss-security/2026/10/08/9NOTE:
https://github.com/golang/go/issues/81857NOTE: Fixed by:
https://github.com/golang/go/commit/cbb0fb8b51cba866018b8a0fb4b5458f16c5c80b (go1.27.2)NOTE: Fixed by:
https://github.com/golang/go/commit/6e049521882c944afc1e519a83971ec421dc2974 (go1.26.9) (CVE-2026-78659)
If BuildKit daemon is started with --cdi-disabled it can lead to daemon panic when builds try to use CDI devices. This can happen maliciously or by accident. (CVE-2026-93316)
An unauthenticated attacker controlling a registry or OCI-layout blob source could provide blob contents that did not match the claimed digest. The resulting snapshot could be cached under that digest and reused by a later victim build, compromising build-input integrity. (CVE-2026-93317)
A malicious image can advertise DiffIDs from another image while containing different layer contents. In affected versions, BuildKit could use the advertised DiffIDs to derive cache and snapshot identity without validating that they matched the actual layer contents.
If a BuildKit daemon with shared or persistent cache first processes such a malicious image, a later build using the victim image may mount the attacker-controlled layer contents as the base image. This can allow code from the malicious image to run in the victim build, for example by replacing a commonly executed path such as /bin/sh. The attacker-controlled code may read build secrets mounted into the build, access other build resources, alter output artifacts, or hang the build.
The issue affects both regular snapshotters and lazy-pulling snapshotters such as stargz. (CVE-2026-93318)
A malicious external BuildKit frontend can send requests using the internal API that can create conditions for a data race that can cause the BuildKit daemon to panic. (CVE-2026-93319)
BuildKit may be tricked into performing file actions with special file inodes where regular files are expected. Special files may block operations or, on rootful workers, allow unintended host device access.
(CVE-2026-93320)
A malicious frontend can submit an LLB definition that causes buildkitdto panic and terminate, interrupting all builds running on that daemon. (CVE-2026-93321)
A malicious frontend can submit an LLB definition that causes buildkitdto panic and terminate, interrupting all builds running on that daemon. (CVE-2026-93322)
Tenable has extracted the preceding description block directly from the tested product security advisory.
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Run 'yum update runfinch-finch' or or 'yum update --advisory ALAS2DOCKER-2026-151' to update your system.See Also
https://alas.aws.amazon.com//AL2/ALAS2DOCKER-2026-151.html
https://alas.aws.amazon.com/faqs.html
https://explore.alas.aws.amazon.com/CVE-2026-78659.html
https://explore.alas.aws.amazon.com/CVE-2026-93316.html
https://explore.alas.aws.amazon.com/CVE-2026-93317.html
https://explore.alas.aws.amazon.com/CVE-2026-93318.html
https://explore.alas.aws.amazon.com/CVE-2026-93319.html
https://explore.alas.aws.amazon.com/CVE-2026-93320.html
Plugin Details
Severity: High
ID: 371810
File Name: al2_ALASDOCKER-2026-151.nasl
Version: 1.1
Type: Local
Agent: unix
Published: 10/24/2026
Updated: 10/24/2026
Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus
Risk Information
VPR
Risk Factor: Low
Score: 3
Percentile: 23.76
CVSS v2
Risk Factor: High
Base Score: 7.8
Temporal Score: 5.8
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C
CVSS Score Source: CVE-2026-78659
CVSS v3
Risk Factor: High
Base Score: 7.5
Temporal Score: 6.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
CVSS v4
Risk Factor: High
Base Score: 7.5
Threat Score: 4.6
Threat Vector: CVSS:4.0/E:U
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
CVSS Score Source: CVE-2026-93318
Vulnerability Information
CPE: cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:runfinch-finch
Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list
Exploit Ease: No known exploits are available
Patch Publication Date: 10/24/2026
Vulnerability Publication Date: 10/5/2026
Reference Information
CVE: CVE-2026-78659, CVE-2026-93316, CVE-2026-93317, CVE-2026-93318, CVE-2026-93319, CVE-2026-93320, CVE-2026-93321, CVE-2026-93322
IAVB: 2026-B-0296-S