# CVE-2026-114723: CVE-2026-114723

Status: published. Published: 2026-10-22. Updated: 2026-11-02.

Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 allows the ImageMagick resource limits to be bypassed during thumbnail generation. When rcube_image falls back to GD, the available-memory check was applied only on Windows, so on other platforms a crafted image with large dimensions was processed by GD without any resource limit and could exhaust server memory. Upstream fixed this in the commit “Fix ImageMagick resource limits bypass by GD fallback during thumbnail generation”, which applies the memory check on all platforms.

## Remediation

- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: mitre) — https://github.com/roundcube/roundcubemail/commit/d28a5703294e971a577e3c4f7bfc33362e3f04cf
- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: mitre) — https://github.com/roundcube/roundcubemail/releases/tag/1.7.5
- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: mitre) — https://github.com/roundcube/roundcubemail/releases/tag/1.6.20
- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: mitre) — https://github.com/roundcube/roundcubemail/commit/0bea81121efd96f07432a837f391dbdd0dffa33f

## Affected products and versions

- Roundcube / Webmail: ≥ 1.6.0; < 1.6.20 (affected, semver); ≥ 1.7.0; < 1.7.5 (affected, semver). Source: CNA: mitre; platforms: Linux, MacOS

## Severity and prioritization

- CVSS 3.1: 3.7 (low); CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L; source: CNA: mitre

- CVSS 3.1: 3.7 (low); CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L; source: NVD: cve@mitre.org

- CISA KEV: No listing in collected sources

- EPSS: 0.33% as of 2026-11-02; percentile 26.49%

- SSVC: exploitation none; automatable no; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-770

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://bugs.debian.org/1151279 (CNA: mitre; issue-tracking, third-party-advisory)

- https://github.com/roundcube/roundcubemail/commit/d28a5703294e971a577e3c4f7bfc33362e3f04cf (CNA: mitre; patch)

- https://roundcube.net/news/2026/10/19/security-updates-1.6.20-and-1.7.5 (CNA: mitre; vendor-advisory, release-notes)

- https://github.com/roundcube/roundcubemail/releases/tag/1.7.5 (CNA: mitre; release-notes, patch)

- https://github.com/roundcube/roundcubemail/releases/tag/1.6.20 (CNA: mitre; release-notes, patch)

- https://github.com/roundcube/roundcubemail/commit/0bea81121efd96f07432a837f391dbdd0dffa33f (CNA: mitre; patch)

- https://bugs.debian.org/1151279 (cve@mitre.org)

- https://github.com/roundcube/roundcubemail/commit/0bea81121efd96f07432a837f391dbdd0dffa33f (cve@mitre.org)

- https://github.com/roundcube/roundcubemail/commit/d28a5703294e971a577e3c4f7bfc33362e3f04cf (cve@mitre.org)

- https://github.com/roundcube/roundcubemail/releases/tag/1.6.20 (cve@mitre.org)

- https://github.com/roundcube/roundcubemail/releases/tag/1.7.5 (cve@mitre.org)

- https://roundcube.net/news/2026/10/19/security-updates-1.6.20-and-1.7.5 (cve@mitre.org)

## Provenance

- CNA: mitre: https://www.cve.org/CVERecord?id=CVE-2026-114723; retrieved 2026-11-02; source updated 2026-11-02

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-114723; retrieved 2026-11-02; source updated 2026-11-02

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-114723; retrieved 2026-11-02; source updated Not reported

Revision: cd58f62dd46c1a83ee8314f70cb1246f2d0d16793461d842f28f28f546f3c14e

Canonical: https://y2.dev/cve/CVE-2026-114723

## Agent and API access

Public CVE pages, Markdown, and JSON are free to read without an account or API key.

- Public catalog: https://y2.dev/cve/index.json. Follow nextCursor with the same search, filters, sort, and limit (1–100). A null cursor marks the end.

- WebMCP: search_cve_disclosures, get_cve_disclosure, get_cve_page_markdown, get_y2_cve_access. Available in compatible browsers.

- Cyber API: https://api.y2.dev/api/v2/cyber/cves and https://api.y2.dev/api/v2/cyber/cves/{cveId}.

- Y2 Pro or Elite: create a workspace API key with the intel:cyber scope and send Authorization: Bearer <Y2_API_KEY>. Setup: https://y2.dev/docs/api/create-key.

- x402: Pay per request without an account or API key. Omit Authorization, read the HTTP 402 PAYMENT-REQUIRED challenge, validate its current requirements, and retry with PAYMENT-SIGNATURE through an authorized payment client. These browser tools never make payments. Guide: https://y2.dev/docs/api/x402.

- OpenAPI: https://y2.dev/api/openapi.yaml. Agent access metadata: https://y2.dev/cve/agent.json.

Collected public records only. Check source status for coverage and freshness.