# CVE-2025-13601: Glib: integer overflow in in g_escape_uri_string() > An integer overflow in glib's URI escaping function can lead to heap buffer overflows, potentially allowing code execution or crashes. - **Severity:** High 7.7 (`CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H`) - **Exploited in the wild:** Not known - **Login needed:** Not needed - **Attackable:** Local or same network only - **Victim action needed:** Not needed - **Fix available:** Yes - **Published:** 26 Nov 2025 - **Updated:** 31 Aug 2026 - **Also known as:** ALSA-2026:0936, ALSA-2026:0975, ALSA-2026:0991, ALSA-2026:18344, ALSA-2026:18705, AZL-71095, AZL-71120, CLSA-2026-1769679861, CLSA-2026-1769697509, CLSA-2026-1769697890, CLSA-2026-1770025166, CLSA-2026-1770111651, CLSA-2026-1770391959, CLSA-2026-1770392599, CLSA-2026-1770392948, CLSA-2026-1771329952, CLSA-2026-1786476812, CLSA-2026-1786482916, DEBIAN-CVE-2025-13601, ECHO-5abc-0c11-05f1, GHSA-v6c5-9mp4-mwq4, JLSEC-2026-487, MINI-72v4-hrcg-x2pf, OESA-2026-1137, OESA-2026-1138, OESA-2026-1139, OESA-2026-1140, OESA-2026-1141, OESA-2026-1142, RHSA-2026:0936, RHSA-2026:0975, RHSA-2026:0991, RHSA-2026:1323, RHSA-2026:1324, RHSA-2026:1326, RHSA-2026:1327, RHSA-2026:1465, RHSA-2026:1608, RHSA-2026:1624, RHSA-2026:1625, RHSA-2026:1626, RHSA-2026:1627, RHSA-2026:18344, RHSA-2026:18705, RLSA-2026:0936, RLSA-2026:0975, RLSA-2026:0991, RLSA-2026:18344, RLSA-2026:18705, UBUNTU-CVE-2025-13601, openSUSE-SU-2025:15810-1 ## What is CVE-2025-13601? CVE-2025-13601 is a high-severity vulnerability in Redhat Enterprise Linux for Ibm Z Systems, published on 26 Nov 2025. It can only be exploited from the same machine or local network, with no action from the victim. ### Official description A heap-based buffer overflow problem was found in glib through an incorrect calculation of buffer size in the g_escape_uri_string() function. If the string to escape contains a very large number of unacceptable characters (which would need escaping), the calculation of the length of the escaped string could overflow, leading to a potential write off the end of the newly allocated string. Weakness: CWE-190 (Integer Overflow or Wraparound) ## Which versions are affected by CVE-2025-13601? It affects 29 products. | Package | Ecosystem | Affected | Fixed in | | --- | --- | --- | --- | | `glib2` | AlmaLinux:10 | All versions | 2.80.4-10.el10_1.12 | | `glib2-devel` | AlmaLinux:10 | All versions | 2.80.4-10.el10_1.12 | | `glib2-doc` | AlmaLinux:10 | All versions | 2.80.4-10.el10_1.12 | | `glib2-static` | AlmaLinux:10 | All versions | 2.80.4-10.el10_1.12 | | `glib2-tests` | AlmaLinux:10 | All versions | 2.80.4-10.el10_1.12 | | `mingw32-glib2` | AlmaLinux:10 | All versions | 2.87.0-1.el10 | | `mingw32-glib2-static` | AlmaLinux:10 | All versions | 2.87.0-1.el10 | | `mingw64-glib2` | AlmaLinux:10 | All versions | 2.87.0-1.el10 | | `mingw64-glib2-static` | AlmaLinux:10 | All versions | 2.87.0-1.el10 | | `glib2` | AlmaLinux:8 | All versions | 2.56.4-168.el8_10 | | `glib2-devel` | AlmaLinux:8 | All versions | 2.56.4-168.el8_10 | | `glib2-doc` | AlmaLinux:8 | All versions | 2.56.4-168.el8_10 | | `glib2-fam` | AlmaLinux:8 | All versions | 2.56.4-168.el8_10 | | `glib2-static` | AlmaLinux:8 | All versions | 2.56.4-168.el8_10 | | `glib2-tests` | AlmaLinux:8 | All versions | 2.56.4-168.el8_10 | | `glib2` | AlmaLinux:9 | All versions | 2.68.4-18.el9_7.1 | | `glib2-devel` | AlmaLinux:9 | All versions | 2.68.4-18.el9_7.1 | | `glib2-doc` | AlmaLinux:9 | All versions | 2.68.4-18.el9_7.1 | | `glib2-static` | AlmaLinux:9 | All versions | 2.68.4-18.el9_7.1 | | `glib2-tests` | AlmaLinux:9 | All versions | 2.68.4-18.el9_7.1 | | `mingw32-glib2` | AlmaLinux:9 | All versions | 2.78.6-3.el9 | | `mingw32-glib2-static` | AlmaLinux:9 | All versions | 2.78.6-3.el9 | | `mingw64-glib2` | AlmaLinux:9 | All versions | 2.78.6-3.el9 | | `mingw64-glib2-static` | AlmaLinux:9 | All versions | 2.78.6-3.el9 | | `glib2` | Red Hat:enterprise_linux:10.1 | All versions | 0:2.80.4-10.el10_1.12 | | `glib2-debuginfo` | Red Hat:enterprise_linux:10.1 | All versions | 0:2.80.4-10.el10_1.12 | | `glib2-debugsource` | Red Hat:enterprise_linux:10.1 | All versions | 0:2.80.4-10.el10_1.12 | | `glib2-devel` | Red Hat:enterprise_linux:10.1 | All versions | 0:2.80.4-10.el10_1.12 | | `glib2-devel-debuginfo` | Red Hat:enterprise_linux:10.1 | All versions | 0:2.80.4-10.el10_1.12 | | `glib2-doc` | Red Hat:enterprise_linux:10.1 | All versions | 0:2.80.4-10.el10_1.12 | | `glib2-static` | Red Hat:enterprise_linux:10.1 | All versions | 0:2.80.4-10.el10_1.12 | | `glib2-tests` | Red Hat:enterprise_linux:10.1 | All versions | 0:2.80.4-10.el10_1.12 | | `glib2-tests-debuginfo` | Red Hat:enterprise_linux:10.1 | All versions | 0:2.80.4-10.el10_1.12 | | `mingw-glib2` | Red Hat:enterprise_linux:10.2 | All versions | 0:2.87.0-1.el10 | | `mingw32-glib2` | Red Hat:enterprise_linux:10.2 | All versions | 0:2.87.0-1.el10 | | `mingw32-glib2-debuginfo` | Red Hat:enterprise_linux:10.2 | All versions | 0:2.87.0-1.el10 | | `mingw32-glib2-static` | Red Hat:enterprise_linux:10.2 | All versions | 0:2.87.0-1.el10 | | `mingw64-glib2` | Red Hat:enterprise_linux:10.2 | All versions | 0:2.87.0-1.el10 | | `mingw64-glib2-debuginfo` | Red Hat:enterprise_linux:10.2 | All versions | 0:2.87.0-1.el10 | | `mingw64-glib2-static` | Red Hat:enterprise_linux:10.2 | All versions | 0:2.87.0-1.el10 | Products: Gnome Glib, Redhat Ceph Storage, Redhat Codeready Linux Builder, Redhat Codeready Linux Builder for Arm64, Redhat Codeready Linux Builder for Arm64 Eus, Redhat Codeready Linux Builder for Ibm Z Systems, Redhat Codeready Linux Builder for Ibm Z Systems Eus, Redhat Codeready Linux Builder for Power Little Endian, Redhat Codeready Linux Builder for Power Little Endian Eus, Redhat Codeready Linux Builder for X86 64, Redhat Codeready Linux Builder for X86 64 Eus, Redhat Discovery, Redhat Enterprise Linux for Arm 64, Redhat Enterprise Linux for Arm 64 Eus, Redhat Enterprise Linux for Ibm Z Systems, Redhat Enterprise Linux for Ibm Z Systems Eus, Redhat Enterprise Linux for Power Little Endian, Redhat Enterprise Linux for Power Little Endian Eus, Redhat Enterprise Linux for X86 64, Redhat Enterprise Linux for X86 64 Eus and 9 more. ## How do I fix CVE-2025-13601? Apply the vendor's patch. ## Is CVE-2025-13601 being exploited? There is no known exploitation of CVE-2025-13601 in the wild and no public exploit code. ## Other vulnerabilities in Redhat Enterprise Linux for Ibm Z Systems - [CVE-2020-35457](https://insights.sbomify.com/CVE-2020-35457/): Integer overflow in n/a (high 7.8) - [CVE-2009-3289](https://insights.sbomify.com/CVE-2009-3289/): Privilege escalation in n/a (high 7.8) - [CVE-2026-58016](https://insights.sbomify.com/CVE-2026-58016/): Glib: integer underflow in gio/gdbusintrospection.c via "g_dbus_node_info_new_for_xml" (high 7.5) - [CVE-2025-4056](https://insights.sbomify.com/CVE-2025-4056/): Glib: glib crash after long command line (high 7.5) - [CVE-2019-13012](https://insights.sbomify.com/CVE-2019-13012/): Misconfiguration in n/a (high 7.5) ## Fix prompt for AI coding agents ```text Check this codebase for CVE-2025-13601 and fix it if it is affected. What it is: CVE-2025-13601 is a high-severity vulnerability in Redhat Enterprise Linux for Ibm Z Systems, published on 26 Nov 2025. It can only be exploited from the same machine or local network, with no action from the victim. Exploitation: There is no known exploitation of CVE-2025-13601 in the wild and no public exploit code. Affected product: Redhat Enterprise Linux for Ibm Z Systems. No package-level version data is available, so check the vendor advisory linked from the reference page. Task: 1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies. 2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it. 3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead. 4. Run the tests and summarise what changed and why. 5. If nothing in the project is affected, say so and change nothing. Reference: https://insights.sbomify.com/CVE-2025-13601/ (Markdown: https://insights.sbomify.com/CVE-2025-13601/index.md) ``` ## Sources - CVE record: https://www.cve.org/CVERecord?id=CVE-2025-13601 - NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-13601 - OSV: https://osv.dev/vulnerability/CVE-2025-13601 --- From sbomify Insights: https://insights.sbomify.com/CVE-2025-13601/ Summaries are generated and may contain mistakes; the official description above is the record.