Glibc CVE-2026-5450 9.8
A vulnerability has been discovered in the GNU C Library, affecting systems that link against versions 2.7 and 2.43. The vulnerability occurs when an application invokes a scanf family function with a specific conversion specifier and width, causing memory corruption. This corruption can lead to program crashes, data integrity loss, or remote code execution if exploited by an attacker.
- ▪The vulnerability is identified as CVE-2026-5450 with a CVSS score of 9.8, indicating high severity.
- ▪Affected systems include most Linux distributions and applications compiled against the affected glibc releases.
- ▪The EPSS score is below 1%, indicating a low likelihood of widespread exploitation at present.
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Story provenance
Source · retrieval · rights · ranking — open for full record
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Attribution is not the same as permission. This drawer separates discovery metadata, excerpts, WeSearch-generated summaries, reuse status, and whether the publisher receives the visit. Nothing here claims a legal grant the publisher has not made.
Record
| Original publisher | Opencve |
| Canonical URL | https://app.opencve.io/cve/CVE-2026-5450 |
| Publication time | Fri, 29 May 2026 07:11:13 +0000 |
| Retrieval time | 2026-05-29T07:19:58.503Z |
| Last seen | 2026-05-29T07:19:58.503Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | fm7e7IS4tuw7 |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
Rights status (four layers)
WeSearch handling by dimension
| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
Impact The vulnerability occurs when an application invokes a scanf family function with the %mc conversion specifier and specifies an explicit width greater than 1024. This causes an off‑by‑one write on a heap buffer and can corrupt adjacent memory. The resulting memory corruption falls under CWE‑122, CWE‑131, and CWE‑787, and may lead to program crash, data integrity loss, or, if an attacker can influence subsequent execution, remote code execution. Affected Systems All systems that link against the GNU C Library between versions 2.7 and 2.43 are affected. This includes most Linux distributions, as well as applications compiled against these glibc releases.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at Opencve.
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