# CVE-2026-25727: time affected by a stack exhaustion denial of service attack > Attackers can cause a denial of service via stack exhaustion in the Rust time library by providing malicious RFC 2822 formatted input. - **Severity:** Medium 6.8 (`CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H`) - **Exploited in the wild:** Not known - **Login needed:** Any signed-in user - **Attackable:** Over the internet - **Victim action needed:** A user has to click or open something - **Fix available:** Yes - **Published:** 6 Feb 2026 - **Updated:** 6 Feb 2026 - **Also known as:** AZL-76821, AZL-76994, AZL-77030, AZL-77034, AZL-77087, AZL-77091, CLEANSTART-2026-FU11492, CLEANSTART-2026-LE78036, DEBIAN-CVE-2026-25727, GHSA-r6v5-fh4h-64xc, MINI-332f-9mpc-h4x8, MINI-43rg-74j3-f2wm, MINI-4frj-5p32-vm6c, MINI-4v64-w5jf-6732, MINI-559f-p2hw-rcqx, MINI-59qp-2v76-r57x, MINI-675x-w687-pjgx, MINI-7wqx-hhwm-w47r, MINI-98j3-93fm-c394, MINI-99gx-297v-x65f, MINI-f723-cm5g-hx84, MINI-mmvm-4fxx-h8vr, MINI-wq29-vrqc-7886, MINI-x8hp-wc8h-7vf7, RUSTSEC-2026-0009, SUSE-SU-2026:0452-1, SUSE-SU-2026:0453-1, SUSE-SU-2026:0470-1, SUSE-SU-2026:0505-1, SUSE-SU-2026:0506-1, SUSE-SU-2026:0514-1, SUSE-SU-2026:0582-1, SUSE-SU-2026:0806-1, SUSE-SU-2026:0816-1, SUSE-SU-2026:0819-1, SUSE-SU-2026:0860-1, SUSE-SU-2026:1599-1, SUSE-SU-2026:1750-1, SUSE-SU-2026:20526-1, SUSE-SU-2026:20534-1, SUSE-SU-2026:20575-1, SUSE-SU-2026:20661-1, SUSE-SU-2026:20684-1, SUSE-SU-2026:20723-1, SUSE-SU-2026:20748-1, SUSE-SU-2026:21275-1, SUSE-SU-2026:21377-1, SUSE-SU-2026:21794-1, SUSE-SU-2026:24127-1, SUSE-SU-2026:24223-1, SUSE-SU-2026:2441-1, UBUNTU-CVE-2026-25727, openSUSE-SU-2026:10170-1, openSUSE-SU-2026:10172-1, openSUSE-SU-2026:10175-1, openSUSE-SU-2026:10179-1, openSUSE-SU-2026:10180-1, openSUSE-SU-2026:10181-1, openSUSE-SU-2026:10182-1, openSUSE-SU-2026:10184-1, openSUSE-SU-2026:10185-1, openSUSE-SU-2026:10202-1, openSUSE-SU-2026:10308-1, openSUSE-SU-2026:20245-1, openSUSE-SU-2026:20326-1, openSUSE-SU-2026:20377-1, openSUSE-SU-2026:20380-1, openSUSE-SU-2026:20610-1, openSUSE-SU-2026:20753-1, openSUSE-SU-2026:22079-1 ## What is CVE-2026-25727? CVE-2026-25727 is a medium-severity denial of service vulnerability in time-rs time, published on 6 Feb 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link. ### Official description time provides date and time handling in Rust. From 0.3.6 to before 0.3.47, when user-provided input is provided to any type that parses with the RFC 2822 format, a denial of service attack via stack exhaustion is possible. The attack relies on formally deprecated and rarely-used features that are part of the RFC 2822 format used in a malicious manner. Ordinary, non-malicious input will never encounter this scenario. A limit to the depth of recursion was added in v0.3.47. From this version, an error will be returned rather than exhausting the stack. Weakness: CWE-121 (Stack-based Buffer Overflow) ## Which versions are affected by CVE-2026-25727? 3 open source packages ship an affected version, including time. It affects 1 product. | Package | Ecosystem | Affected | Fixed in | | --- | --- | --- | --- | | `time` | crates.io | From 0.3.6 | 0.3.47 | | `time` | crates.io | From 0.3.6 | 0.3.47 | | `time` | crates.io | From 0.3.6 | 0.3.47 | | `cargo-auditable` | SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS | All versions | 0.7.2~0-150300.7.6.1 | | `librsvg` | SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS | All versions | 2.52.12-150400.3.12.1 | | `cargo-auditable` | SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS | All versions | 0.7.2~0-150300.7.6.1 | | `librsvg` | SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS | All versions | 2.52.12-150400.3.12.1 | | `cargo-auditable` | SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS | All versions | 0.7.2~0-150500.12.6.1 | | `librsvg` | SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS | All versions | 2.52.12-150400.3.12.1 | | `cargo-auditable` | SUSE:Linux Enterprise High Performance Computing 15 SP5-LTSS | All versions | 0.7.2~0-150500.12.6.1 | | `librsvg` | SUSE:Linux Enterprise High Performance Computing 15 SP5-LTSS | All versions | 2.52.12-150400.3.12.1 | | `librsvg` | SUSE:Linux Enterprise Micro 5.3 | All versions | 2.52.12-150400.3.12.1 | | `rust-keylime` | SUSE:Linux Enterprise Micro 5.3 | All versions | 0.2.8+116-150400.3.13.1 | | `librsvg` | SUSE:Linux Enterprise Micro 5.4 | All versions | 2.52.12-150400.3.12.1 | | `rust-keylime` | SUSE:Linux Enterprise Micro 5.4 | All versions | 0.2.8+116-150400.3.11.1 | | `librsvg` | SUSE:Linux Enterprise Micro 5.5 | All versions | 2.52.12-150400.3.12.1 | | `rust-keylime` | SUSE:Linux Enterprise Micro 5.5 | All versions | 0.2.8+116-150500.3.11.1 | | `SLES16-Migration` | SUSE:Linux Enterprise Module for Basesystem 15 SP7 | All versions | 2.1.30-15.26.4 | | `suse-migration-services` | SUSE:Linux Enterprise Module for Basesystem 15 SP7 | All versions | 2.1.30-150700.15.21.1 | | `suse-migration-sle16-activation` | SUSE:Linux Enterprise Module for Basesystem 15 SP7 | All versions | 2.1.30-150700.15.13.1 | | `virtiofsd` | SUSE:Linux Enterprise Module for Basesystem 15 SP7 | All versions | 1.12.0-150700.3.3.1 | | `wicked2nm` | SUSE:Linux Enterprise Module for Basesystem 15 SP7 | All versions | 1.4.1-150700.15.16.1 | | `cargo-auditable` | SUSE:Linux Enterprise Module for Development Tools 15 SP7 | All versions | 0.7.2~0-150700.3.5.1 | | `rustup` | SUSE:Linux Enterprise Module for Development Tools 15 SP7 | All versions | 1.28.2~0-150600.10.10.1 | | `SLES16-SAP_Migration` | SUSE:Linux Enterprise Module for SAP Applications 15 SP7 | All versions | 2.1.30-15.18.4 | | `cargo-auditable` | SUSE:Linux Enterprise Server 15 SP4-LTSS | All versions | 0.7.2~0-150300.7.6.1 | | `librsvg` | SUSE:Linux Enterprise Server 15 SP4-LTSS | All versions | 2.52.12-150400.3.12.1 | | `cargo-auditable` | SUSE:Linux Enterprise Server 15 SP5-LTSS | All versions | 0.7.2~0-150500.12.6.1 | | `librsvg` | SUSE:Linux Enterprise Server 15 SP5-LTSS | All versions | 2.52.12-150400.3.12.1 | | `cargo-auditable` | SUSE:Linux Enterprise Server 15 SP6-LTSS | All versions | 0.7.2~0-150500.12.6.1 | | `rustup` | SUSE:Linux Enterprise Server 15 SP6-LTSS | All versions | 1.28.2~0-150600.10.10.1 | | `snpguest` | SUSE:Linux Enterprise Server 15 SP6-LTSS | All versions | 0.3.2-150600.3.9.1 | | `virtiofsd` | SUSE:Linux Enterprise Server 15 SP6-LTSS | All versions | 1.10.1-150600.4.6.1 | | `virtiofsd` | SUSE:Linux Enterprise Server 16.0 | All versions | 1.12.0-160000.4.1 | | `wicked2nm` | SUSE:Linux Enterprise Server 16.0 | All versions | 1.4.1-160000.1.1 | | `cargo-auditable` | SUSE:Linux Enterprise Server for SAP Applications 15 SP4 | All versions | 0.7.2~0-150300.7.6.1 | | `librsvg` | SUSE:Linux Enterprise Server for SAP Applications 15 SP4 | All versions | 2.52.12-150400.3.12.1 | | `cargo-auditable` | SUSE:Linux Enterprise Server for SAP Applications 15 SP5 | All versions | 0.7.2~0-150500.12.6.1 | | `librsvg` | SUSE:Linux Enterprise Server for SAP Applications 15 SP5 | All versions | 2.52.12-150400.3.12.1 | | `cargo-auditable` | SUSE:Linux Enterprise Server for SAP Applications 15 SP6 | All versions | 0.7.2~0-150500.12.6.1 | Products: Time Project Time. ## How do I fix CVE-2026-25727? Upgrade time to 0.3.47 or later. ## Is CVE-2026-25727 being exploited? There is no known exploitation of CVE-2026-25727 in the wild and no public exploit code. ## Other vulnerabilities in time-rs time - [CVE-2020-26235](https://insights.sbomify.com/CVE-2020-26235/): Segmentation fault in Rust time crate (medium 5.3) ## Fix prompt for AI coding agents ```text Check this codebase for CVE-2026-25727 and fix it if it is affected. What it is: CVE-2026-25727 is a medium-severity denial of service vulnerability in time-rs time, published on 6 Feb 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link. Exploitation: There is no known exploitation of CVE-2026-25727 in the wild and no public exploit code. Affected packages and fixed versions: - time (crates.io): affected from 0.3.6; fixed in 0.3.47 - time (crates.io): affected from 0.3.6; fixed in 0.3.47 - time (crates.io): affected from 0.3.6; fixed in 0.3.47 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-2026-25727/ (Markdown: https://insights.sbomify.com/CVE-2026-25727/index.md) ``` ## Sources - CVE record: https://www.cve.org/CVERecord?id=CVE-2026-25727 - NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-25727 - OSV: https://osv.dev/vulnerability/CVE-2026-25727 --- From sbomify Insights: https://insights.sbomify.com/CVE-2026-25727/ Summaries are generated and may contain mistakes; the official description above is the record.