CVE-2026-4887— Gimp: gimp:memory disclosure and denial of service via specially crafted pcx image
Possible ATT&CK Techniques 2AI
T1059 · Command and Scripting Interpreter T1203 · Exploitation for Client ExecutionAffected Version Matrix 16
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I. Basic Information for CVE-2026-4887
Vulnerability Information
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Vulnerability Title
Gimp: gimp:memory disclosure and denial of service via specially crafted pcx image
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in GIMP. This issue is a heap buffer over-read in GIMP PCX file loader due to an off-by-one error. A remote attacker could exploit this by convincing a user to open a specially crafted PCX image. Successful exploitation could lead to out-of-bounds memory disclosure and a possible application crash, resulting in a Denial of Service (DoS).
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
Off-by-one错误
Source: CVE Program / CVE List V5
Vulnerability Title
Red Hat Enterprise Linux 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Red Hat Enterprise Linux是美国红帽（Red Hat）公司的面向企业用户的Linux操作系统。 Red Hat Enterprise Linux存在安全漏洞，该漏洞源于PCX文件加载器存在堆缓冲区过度读取，可能导致越界内存泄露和拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 7 Extended Lifecycle Support | 2:2.8.22-1.el7_9.6 ~ * | cpe:/o:redhat:rhel_els:7 | |
| Red Hat | Red Hat Enterprise Linux 8 | 8100020260512115927.4c9c024f ~ * | cpe:/a:redhat:enterprise_linux:8::appstream | |
| Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | 8040020260520140422.70584597 ~ * | cpe:/a:redhat:rhel_aus:8.4::appstream | |
| Red Hat | Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | 8040020260520140422.70584597 ~ * | cpe:/a:redhat:rhel_aus:8.4::appstream | |
| Red Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | 8060020260520140100.6af1eaf0 ~ * | cpe:/a:redhat:rhel_aus:8.6::appstream | |
| Red Hat | Red Hat Enterprise Linux 8.6 Telecommunications Update Service | 8060020260520140100.6af1eaf0 ~ * | cpe:/a:redhat:rhel_aus:8.6::appstream | |
| Red Hat | Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions | 8060020260520140100.6af1eaf0 ~ * | cpe:/a:redhat:rhel_aus:8.6::appstream | |
| Red Hat | Red Hat Enterprise Linux 8.8 Telecommunications Update Service | 8080020260520102644.0621e4ee ~ * | cpe:/a:redhat:rhel_e4s:8.8::appstream | |
| Red Hat | Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | 8080020260520102644.0621e4ee ~ * | cpe:/a:redhat:rhel_e4s:8.8::appstream | |
| Red Hat | Red Hat Enterprise Linux 9 | 2:3.0.4-1.el9_7.5 ~ * | cpe:/a:redhat:enterprise_linux:9::appstream | |
| Red Hat | Red Hat Enterprise Linux 9 | 2:3.0.4-4.el9_8.4 ~ * | cpe:/a:redhat:enterprise_linux:9::appstream | |
| Red Hat | Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions | 2:2.99.8-3.el9_0.6 ~ * | cpe:/a:redhat:rhel_e4s:9.0::appstream | |
| Red Hat | Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions | 2:2.99.8-4.el9_2.6 ~ * | cpe:/a:redhat:rhel_e4s:9.2::appstream | |
| Red Hat | Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions | 2:2.99.8-4.el9_4.6 ~ * | cpe:/a:redhat:rhel_e4s:9.4::appstream | |
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support | 2:2.99.8-4.el9_6.7 ~ * | cpe:/a:redhat:rhel_eus:9.6::appstream | |
| Red Hat | Red Hat Enterprise Linux 6 | - | cpe:/o:redhat:enterprise_linux:6 |
II. Public POCs for CVE-2026-4887
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-4887 (8)
- 2451669 – (CVE-2026-4887) CVE-2026-4887 gimp: GIMP:Memory disclosure and denial of service via specially crafted PCX imageissue-trackingx_refsource_REDHAT
- 🔗 RHSA-2026:20554 - Security Advisory - Red Hat Customer Portal Read full article vendor-advisoryx_refsource_REDHAT
- 🔗 RHSA-2026:20553 - Security Advisory - Red Hat Customer Portal Read full article vendor-advisoryx_refsource_REDHAT
- 🔗 RHSA-2026:19362 - Security Advisory - Red Hat Customer Portal Read full article vendor-advisoryx_refsource_REDHAT
Other References for CVE-2026-4887 (1)
Other References for CVE-2026-4887 (5)
Same Patch Batch · Red Hat · 2026-03-26 · 16 CVEs total
| CVE-2025-12805 | 8.1 HIGH | Llama-stack-k8s-operator: llama stack service exposed across namespaces due to missing net |
| CVE-2026-1961 | 8.0 HIGH | Forman: foreman: remote code execution via command injection in websocket proxy |
| CVE-2026-2436 | 6.5 MEDIUM | Libsoup: libsoup: denial of service via use-after-free in soupserver during tls handshake |
| CVE-2026-3121 | 6.5 MEDIUM | Keycloak: org.keycloak/keycloak-services: keycloak: privilege escalation via manage-client |
| CVE-2026-4897 | 5.5 MEDIUM | Polkit: polkit: denial of service via unbounded input processing through standard input |
| CVE-2026-2272 | 4.3 MEDIUM | Gimp: gimp: memory corruption due to integer overflow in ico file handling |
| CVE-2026-3190 | 4.3 MEDIUM | Keycloak: keycloak: information disclosure via improper role enforcement in uma 2.0 protec |
| CVE-2026-2271 | 3.3 LOW | Gimp: gimp: denial of service via crafted psp image file |
| CVE-2026-0968 | 3.1 LOW | Libssh: libssh: denial of service due to malformed sftp message |
| CVE-2026-4874 | 3.1 LOW | Org.keycloak.protocol.oidc.grants: org.keycloak.services.managers: keycloak: server-side r |
| CVE-2026-2239 | 2.8 LOW | Gimp: gimp: application crash (dos) via crafted psd file due to heap-buffer-overflow |
| CVE-2026-0965 | Libssh: libssh: denial of service via improper configuration file handling | |
| CVE-2026-0967 | Libssh: libssh: denial of service via inefficient regular expression processing | |
| CVE-2026-0964 | Libssh: improper sanitation of paths received from scp servers | |
| CVE-2026-0966 | Libssh: libssh: denial of service via zero-length input in ssh_get_hexa() |
IV. Related Vulnerabilities
Same product: Red Hat Enterprise Linux 7 Extended Lifecycle Support
Same vendor: Red Hat
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Same weakness: CWE-193
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V. Comments for CVE-2026-4887
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