VulnerabilityPublished 11 Jan 2026Updated 23 Feb 2026

CVE-2025-15506: AcademySoftwareFoundation OpenColorIO · Out-of-bounds Read

Affects AcademySoftwareFoundation OpenColorIOSource CVE Database V5

Public exploit available · CVSS 4.8 Medium.

Data as of 26 Oct 2026, 12:29 UTC

CVSS 4.0 base score

4.8Medium

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

EPSS: 0.1% chance of exploitation in 30 days – higher than 7% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

CVSS: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

Base metrics

Attack Vector: Local
Attack Complexity: Low
Attack Requirements: None
Privileges Required: Low
User Interaction: None
Vulnerable system confidentiality: None
Vulnerable system integrity: None
Vulnerable system availability: Low
Subsequent system confidentiality: None
Subsequent system integrity: None
Subsequent system availability: None

Threat metrics

Exploit Maturity: POC

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

Attack Vector: Local: The vulnerable system 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 through terminal emulation (e.g., SSH); or the attacker relies on User Interaction by another person to perform actions required to exploit the vulnerability (e.g., using social engineering techniques to trick a legitimate user into opening a malicious document).
Attack Complexity: Low: The attacker must take no measurable action to exploit the vulnerability. The attack requires no target-specific circumvention to exploit the vulnerability. An attacker can expect repeatable success against the vulnerable system.
Attack Requirements: None: The successful attack does not depend on the deployment and execution conditions of the vulnerable system. The attacker can expect to be able to reach the vulnerability and execute the exploit under all or most instances of the vulnerability.
Privileges Required: Low: The attacker requires privileges that provide basic capabilities that are typically limited to settings and resources owned by a single low-privileged user. Alternatively, an attacker with Low privileges has the ability to access only non-sensitive resources.
User Interaction: None: The vulnerable system can be exploited without interaction from any human user, other than the attacker.
Vulnerable system confidentiality: None: There is no loss of confidentiality within the Vulnerable System.
Vulnerable system integrity: None: There is no loss of integrity within the Vulnerable System.
Vulnerable system 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 Vulnerable System 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 Vulnerable System.
Subsequent system confidentiality: None: There is no loss of confidentiality within the Subsequent System or all confidentiality impact is constrained to the Vulnerable System.
Subsequent system integrity: None: There is no loss of integrity within the Subsequent System or all integrity impact is constrained to the Vulnerable System.
Subsequent system availability: None: There is no impact to availability within the Subsequent System or all availability impact is constrained to the Vulnerable System.
Exploit Maturity: POC: Based on threat intelligence sources each of the following must apply: · Proof-of-concept is publicly available · No knowledge of reported attempts to exploit this vulnerability · No knowledge of publicly available solutions used to simplify attempts to exploit the vulnerability

Definitions: FIRST CVSS v4.0 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 11 Jan 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: evidence found.
CVSS exploit maturity: proof of concept public
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), CVSS vector, the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 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.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, 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

Affected software

Product	Affected	Fixed in
AcademySoftwareFoundationOpenColorIO	Affected 2.0 – 2.5.0 6 affected builds	Fixed in–
GitHubacademysoftwarefoundation/OpenColorIO`pkg:github/academysoftwarefoundation/OpenColorIO`Other threats	Affected 2.0 – 2.5.0 6 affected builds	Fixed in–

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

AI-suggested

To mitigate this vulnerability, organizations should promptly upgrade OpenColorIO to version 2.5.1 or later, where the out-of-bounds read issue has been fixed. In environments where immediate upgrading is not feasible, applying any available backported patches or vendor-provided hotfixes is recommended. Restrict local access to systems running vulnerable OpenColorIO versions by enforcing strict access controls and monitoring for suspicious local activity. Employ application whitelisting and integrity monitoring to detect unauthorized modifications or exploitation attempts. Additionally, conduct regular code audits and fuzz testing on multimedia processing components to identify similar vulnerabilities proactively. For organizations integrating OpenColorIO into larger pipelines, isolate these components within secure containers or sandbox environments to limit the impact of potential exploitation. Maintain up-to-date backups and incident response plans tailored to media production environments to minimize downtime in case of exploitation-induced crashes or data leaks.

Description

A vulnerability was found in AcademySoftwareFoundation OpenColorIO up to 2.5.0. This issue affects the function ConvertToRegularExpression of the file src/OpenColorIO/FileRules.cpp. Performing a manipulation results in out-of-bounds read. The attack needs to be approached locally. The exploit has been made public and could be used. The patch is named ebdbb75123c9d5f4643e041314e2bc988a13f20d. To fix this issue, it is recommended to deploy a patch. The fix was added to the 2.5.1 milestone.

Impact

The primary impact of this vulnerability is the potential for local attackers to read memory beyond intended boundaries, which may lead to unauthorized disclosure of sensitive information residing in adjacent memory areas. This could include configuration data, credentials, or other sensitive runtime information. Additionally, the out-of-bounds read could cause application instability or crashes, potentially disrupting media production workflows that rely on OpenColorIO. Given OpenColorIO's role in color management for visual effects and animation pipelines, exploitation could degrade the integrity and availability of critical post-production systems. While the vulnerability does not allow remote exploitation or privilege escalation, insider threats or compromised local accounts could leverage this flaw to gain further insight into system internals or cause denial of service. Organizations heavily dependent on OpenColorIO for content creation may face operational disruptions and confidentiality risks if unpatched. The absence of known exploits in the wild reduces immediate risk but does not eliminate the potential for future attacks, especially as exploit code becomes available.

Summary

CVE-2025-15506 is a medium-severity vulnerability identified in the OpenColorIO library, a widely used open-source color management system primarily utilized in visual effects and animation production. The vulnerability arises from an out-of-bounds read in the ConvertToRegularExpression function located in the FileRules.cpp source file. This function is responsible for converting file rules into regular expressions for matching purposes. Due to insufficient bounds checking during manipulation of input data, an attacker with local access and low privileges can trigger an out-of-bounds read, potentially leading to the disclosure of sensitive memory contents or causing application crashes. The vulnerability does not require user interaction or elevated privileges beyond local access, limiting remote exploitation. The issue affects all OpenColorIO versions from 2.0 through 2.5.0. The maintainers addressed the flaw in version 2.5.1 by implementing proper bounds validation. Although no public exploits are currently known in the wild, the vulnerability has been publicly disclosed, increasing the risk of exploitation attempts. The CVSS v4.0 vector indicates low attack complexity and no requirement for authentication or user interaction, but the attack surface is limited to local users. This vulnerability underscores the importance of secure input validation in multimedia processing libraries that handle complex file matching logic.

References

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 23 Feb 2026, 22:40 UTC

Technical details

References

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