CVE-2008-3655: n/a vulnerability

CVE-2008-3655: Ruby 1.8.5 and earlier, 1.8.6 through 1.8.6-p286, 1.8.7 through 1.8.7-p71, and 1.9 through r18423 does not...

Ruby 1.8.5 and earlier, 1.8.6 through 1.8.6-p286, 1.8.7 through 1.8.7-p71, and 1.9 through r18423 does not properly restrict access to critical variables and methods at various safe levels, which allows context-dependent attackers to bypass intended access restrictions via (1) untrace_var, (2) $PROGRAM_NAME, and (3) syslog at safe level 4, and (4) insecure methods at safe levels 1 through 3.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 7, 2024, 09:45 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2008-3655 is an old Ruby flaw where Ruby safe-level restrictions could be bypassed. The issue matters mainly for systems that still run affected Ruby versions and rely on Ruby’s safe levels to restrict untrusted or semi-trusted code. Exposure is most likely in legacy Ruby 1.8.x or early 1.9 deployments, embedded appliances, or old Linux and macOS packages. Modern systems are less likely affected unless they ship or bundle vulnerable Ruby runtimes. Treat as a legacy exposure cleanup item unless vulnerable Ruby is used to isolate untrusted code. Prioritize internet-facing or multi-tenant systems first, especially where Ruby runtimes are unsupported. Mitigation focus: Inventory all system and bundled Ruby runtimes.; Upgrade affected Ruby versions using vendor-supported packages or guidance.; Prioritize systems processing untrusted Ruby code or plugins..

Prepared: Jun 28, 2026, 18:33 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Aug 13, 2008, 01:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

6Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
USN-651-1CVE reference · vendor-advisory, x_refsource_UBUNTU
FEDORA-2008-8736CVE reference · vendor-advisory, x_refsource_FEDORA
oval:org.mitre.oval:def:11602CVE reference · vdb-entry, signature
ruby-safelevel-security-bypass(44369)CVE reference · vdb-entry, x_refsource_XF
FEDORA-2008-8738CVE reference · vendor-advisory, x_refsource_FEDORA

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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