CVE-2026-9698
CVE-2026-9698 is a critical-severity vulnerability in Perl Dbi with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- EPSS exploit prediction: 0% (30th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-35366
- Weakness: CWE-787
- Affected product: Perl Dbi
- Published:
- Last modified:
Description
DBI versions before 1.648 for Perl saved errors in a limited-sized buffer. Error messages that were returned when RaiseError, PrintError or HandleError were set were written to a 200-byte buffer without a length limit. Attackers that can influence the error text in an application can trigger a buffer overflow.
Frequently asked questions
- What is CVE-2026-9698?
- DBI versions before 1.648 for Perl saved errors in a limited-sized buffer. Error messages that were returned when RaiseError, PrintError or HandleError were set were written to a 200-byte buffer without a length limit. Attackers that can influence the error text in an application can trigger a buffer overflow.
- How severe is CVE-2026-9698?
- CVE-2026-9698 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2026-9698 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (30th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-9698?
- CVE-2026-9698 affects Perl Dbi. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-9698?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- Does CVE-2026-9698 have an EU (EUVD) identifier?
- Yes. CVE-2026-9698 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-35366.
- When was CVE-2026-9698 published?
- CVE-2026-9698 was published on 2026-06-09 and last updated on 2026-06-30.
References
- https://github.com/perl5-dbi/dbi/commit/bfe5d73c162d2d1f761a639a0aa33aad6a9eb54e.patch
- https://metacpan.org/release/HMBRAND/DBI-1.648/changes
- http://www.openwall.com/lists/oss-security/2026/06/09/9
- https://access.redhat.com/security/cve/CVE-2026-9698
- https://bugzilla.redhat.com/show_bug.cgi?id=2486734
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-9698.json
Affected products (1)
- cpe:2.3:a:perl:dbi:*:*:*:*:*:*:*:*
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