Vulnerability · CVE-2026-91057
reads one byte past the end of the application's text buffer when the string it is given ends with a carriage return ( ).
Published Oct 20, 2026 · catalog updated Oct 20, 2026 · reads one byte past
Last checked Nov 4, 2026. A connected source was read within the last 7 days.
Check if you run it
No confirmed exploitation is on record for CVE-2026-91057. EPSS is 0.16%. Act only if a listed version of reads one byte past is installed.
Gaps on this record
- The stored product name is a package slug. The name on this page is taken from the title (reads one byte past).
- No version range is stored. A customer cannot check an installed version against this record.
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
- Severity
- Medium4.6
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.16%
- Remediation
- Advisory link
- Affected products
- See sources for product scope
reads one byte past the end of the application's text buffer when the string it is given ends with a carriage return ( ). The over-read can also cause callers to advance their index past the end of the string, producing a second over-read in and a row of text that is not in the source.
No affected version ranges are stored yet. Use the vendor advisory before you decide this record does not apply.
How to fix CVE-2026-91057
No stored fix
No vendor fix text is stored. Use the linked advisory before you change production.
Version check
No version range is stored, so an installed version cannot be checked on this page.
Advisory
Open the cve_org record and follow its fix.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2026-91057. EPSS is 0.16%. Act only if a listed version of reads one byte past is installed.
Which versions are affected?
Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
CWE-125: Out-of-bounds Read. EPSS 0.16%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
Timeline
Detection, updates, and resolution for this record.
Oct 20, 2026 · NIST NVD
Detected
reads one byte past the end of the application's text buffer when the string it is given ends with a carriage return ( ). The over-read can also cause callers to advance their index past the end of the string, producing a second over-read in and a row of text that is not in the source.
Oct 20, 2026 · NIST NVD
Updated
reads one byte past the end of the application's text buffer when the string it is given ends with a carriage return ( ). The over-read can also cause callers to advance their index past the end of the string, producing a second over-read in and a row of text that is not in the source.
Oct 20, 2026 · NIST NVD
Updated
reads one byte past the end of the application's text buffer when the string it is given ends with a carriage return ( ). The over-read can also cause callers to advance their index past the end of the string, producing a second over-read in and a row of text that is not in the source.
Sources
- CVE.orgVulnerability recordCVE-2026-91057
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2026-91057
30-day exploitation probability 0.16%
first.org - NIST NVDVulnerability recordCVE-2026-91057
reads one byte past the end of the application's text buffer when the string it is given ends with a carriage return ( ). The over-read can also cause callers to advance their index past the end of the string, producing a second ov
nvd.nist.gov
References
Freshness
Last verified in this catalog Nov 4, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.
- FIRST EPSSOct 23, 2026
- CVE.orgOct 21, 2026
- NIST NVDOct 21, 2026