VulnerabilityPublished 4 Jun 2024Updated 6 Nov 2025

CVE-2024-27282: Ruby

Affects rubySource GCVE Database

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Authoritative record:CVE-2024-27282· Medium 6.6

Not known to be exploited · CVSS 6.6 Medium · fixed in 3.3.1 : update ruby when convenient.

Data as of 4 Nov 2026, 18:28 UTC

CVSS 3.1 base score

6.6Medium

How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none

CVSS scores by source
CISA-ADP	CVSS 3.1	6.6

Patch: Available – fixed in 3.3.1, 3.2.4, 3.1.5

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:L

Attack Vector: Local
Attack Complexity: Low
Privileges Required: None
User Interaction: Required
Scope: Unchanged
Confidentiality: High
Integrity: Low
Availability: Low

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Local: The vulnerable component is not bound to the network stack and the attacker’s path is via read/write/execute capabilities. Either: the attacker exploits the vulnerability by accessing the target system locally (e.g., keyboard, console), or remotely (e.g., SSH); or the attacker relies on User Interaction by another person to perform actions required to exploit the vulnerability (e.g., tricking a legitimate user into opening a malicious document).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.
User Interaction: Required: Successful exploitation of this vulnerability requires a user to take some action before the vulnerability can be exploited.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: High: There is total loss of confidentiality, resulting in all resources within the impacted component being divulged to the attacker. Alternatively, access to only some restricted information is obtained, but the disclosed information presents a direct, serious impact.
Integrity: Low: Modification of data is possible, but the attacker does not have control over the consequence of a modification, or the amount of modification is limited. The data modification does not have a direct, serious impact on the impacted component.
Availability: Low: Performance is reduced or there are interruptions in resource availability. Even if repeated exploitation of the vulnerability is possible, the attacker does not have the ability to completely deny service to legitimate users. The resources in the impacted component are either partially available all of the time, or fully available only some of the time, but overall there is no direct, serious consequence to the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 8 May 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 4 Nov 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade ruby to 3.3.1, 3.2.4 or 3.1.5.

Affected software

Product	Affected	Fixed in
Bitnamiruby`pkg:bitnami/ruby`Other threats	Affected <3.1.5 >=3.2.0 <3.2.4 >=3.3.0 <3.3.1	Fixed in 3.1.5 3.2.4 3.3.1

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Apply the official patches by upgrading Ruby to versions 3.0.7, 3.1.5, 3.2.4, or 3.3.1 or later. These versions contain fixes for this vulnerability. No other mitigation is indicated by the vendor advisory.

Description

A vulnerability in Ruby versions 3.x through 3.3.0 allows an attacker to supply crafted data to the Ruby regex compiler to extract arbitrary heap data, including pointers and sensitive strings. This issue is fixed in Ruby versions 3.0.7, 3.1.5, 3.2.4, and 3.3.1.

Impact

An attacker able to provide input to the Ruby regex compiler can extract arbitrary heap data, which may include sensitive information such as pointers and strings. This could lead to information disclosure vulnerabilities in applications using affected Ruby versions.

Summary

CVE-2024-27282 is a vulnerability affecting Ruby versions 3.x through 3.3.0 where attacker-controlled input to the Ruby regular expression compiler can lead to disclosure of arbitrary heap memory relative to the start of the text. This memory disclosure includes pointers and sensitive strings, potentially exposing sensitive information. The issue is resolved in Ruby versions 3.0.7, 3.1.5, 3.2.4, and 3.3.1.

References

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 4 Nov 2026, 18:28 UTC

Technical details

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